Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Sculptris - Sculptris: Enter a world of digital art without barriers.
Corel Painter - Corel Painter is media painting software.
ZBrush - ZBrush is a digital sculpting and painting software solution.