Pixelmator is a beautifully designed, easy-to-use, fast and powerful image editor for Mac OS X has everything you need to create, edit and enhance your images.

Real-Draw seamlessly combines vector tools with the rich look of pixel based images and innovative natural paint techniques into a single graphics editor.

TwistedBrush has more than 5,000 brushes available, along with all the features that artists love to use: layers, realistic media, photo cloning, tracing, masks, particles, filters, script recording, scripts to AVI, drawing tablet support, brush shapes, patterns, textures, Adobe compatible plug-in support, integrated scanner support, image brushes, drawing guides, reference image views, dirty brushes, scratch layer, dynamic palettes and a whole lot more.

NeoPaint is a full featured artist's studio for Win & Vi that's easy-to-learn, powerful and affordable! It's simple enough for beginners yet packed with powerful features and advanced tools. Includes an excellent screen capture feature, animated GIF editor, icon editor, special effects, natural media painting tools, and more. NeoPaint makes it easy for business and home users to touch up photographs and create great looking graphics for desktop publishing, presentations and the Internet!

Dynamic Auto-Painter (DAP) is a fun to use software to automatically turn a photo or a 3D rendering into great looking painting inspired by some of the most famous real world artists.

Dynamic Auto-Painter (DAP) is a fun to use software to automatically turn a photo or a 3D rendering into great looking painting inspired by some of the most famous real world artists.

CyberLink YouPaint painting software is a fun-packed touch application for painting on the PC. Brushes, pens, a color palette, stamps, tracing paper, image blooms, and more, provide hours of creative entertainment. YouPaint’s welcoming interface is optimized for multi touch platforms and pen tablets, allowing realistic painting by hand and pen.

Note: I know this is a little old but this is the only version I can find that is not infected.

Corel Painter 11 is the world’s leading digital art software. Designed for artists by artists, it opens up a world of creativity by offering progressive drawing tools, lifelike Natural-Media brushes and the most realistic digital painting experience. With its impressive array of brushes, paper textures, paints, oils, watercolors and more, there are no limits to what you can create! And thanks to extensive file support, you can also build upon projects you've started in other programs, making Painter a great complement to Adobe Photoshop.

Cool Paint is a painting software for drawing and image editing with more than 40 realistic painting tools and a vast picture gallery containing 1,000 pictures. Everyone can be Van Gogh with Cool Paint.

Autodesk SketchBook Pro paint and drawing software enables you to transform your desktop computer, laptop, or tablet PC into the ultimate sketchbook. With professional-quality sketching capabilities and an intuitive interface, even new users can be productive within minutes.

Designed for kids to paint, create and express themselves. Choose from a multitude of cool and attractive content and clip art.

E-Paint is a Windows paint application — unlike numerous Windows paint "programs." It's easy to use, quick to learn and less difficult to master than many brands of soap. If you're able to work the web browser that's displaying this document, you have all the necessary skills to successfully operate e-Paint.

Fractal Noise 3D - After Effects Plug-in, that create Fractal Noise in three dimensions! Very useful for integrating noise in 3D composites. 3D Noise reacts to After Effects comp cameras and lights. You can choose 3 geometry modes: Uniform, Horizontal and Spherical. You can also have an obstacle 3D layer. Composite with 3D renders by using a depth map to determine the noise interaction in space. Fractal Noise 3D is an OpenGL effect and requires OpenGL 2.0. Compatible: After Effects CS3, CS4, CS5, CS5.5 (64Bit Only)

IMP is an acronym for GNU Image Manipulation Program. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
It has many capabilities. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, etc.

In this series of ZBrush tutorials, we'll be talking about the some of the ways you can use the new FiberMesh feature to create foliage, fur, or even human hair. ZBrush has always been a great tool for concepting characters and models and creating highly detailed sculpts. The materials, lighting, and rendering capabilities have also been continually enhanced and we can now get some great final images right out of ZBrush. One important thing that was still difficult to achieve in ZBrush was hair or fur. Many of the characters you create will require some kind of hair or fur to really be finished. FiberMesh, added in ZBrush 4R2b is a great solution. In this course we'll look at the basics of working with FiberMesh as well as a number of different scenarios in which it could be used. We'll talk about creating grass and trees, fur, and different varieties of hair, and we'll go over many of the available grooming brushes. There's no substitute for getting in there and playing with it yourself, but at the end of this tutorial, you'll have a much better idea of what you can do and how to go about getting the results you need for your custom creation

AKVIS All Plugins 2012 - will make you an artist, restorer, a magician and creative person. When you first turn the program AKVIS, a surprisingly simple interface box and 5-6 buttons when you hover on them exhaustively talk about their functions.

Blender, the open source software for 3D modeling, animation, rendering, post-production, interactive creation and playback. Available for Windows, Linux, Irix, Sun Solaris, FreeBSD or Mac OS X. Blender has proven to be an extremely fast and versatile design instrument. The software has a personal touch, offering a unique approach to the world of Three Dimensions. Use Blender to create TV commercials, to make technical visualizations, business graphics, to do some morphing, or design user interfaces. You can easy build and manage complex environments. The renderer is versatile and extremely fast. All basic animation principles (curves & keys) are well implemented.

Build professional banners, advertisements and other commercial animations in minutes, with an impressively short learning curve. Animation Workshop handles the elements of its animations as objects, eliminating the need to understand how animation files are structured.

Finally, there were "curvesВ» - Curves, the possibility of correcting chromatic aberration, Blur-effect is to soften the skin and other editing features.

SmoothDraw is an easy natural painting and digital free-hand drawing software that can produce high quality pictures. Support many kinds of brushes (pen, pencil, dry media, airbrush, bristle brush, image hose, etc.), retouch tools, layers, image adjustment, and many effects... Works great with tablets and Tablet PC.