Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
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.
Anchor CMS - Free and lightweight blogging system
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
Textpattern - Textpattern is an elegant content management system that is free, open source software.
GIMP - GIMP is a multiplatform photo manipulation tool.