FotoSketcher - Turn photos to paintings, drawings and sketches. FotoSketcher is a 100% free program to turn your photos into beautiful art, automatically.
GIMP - GIMP is a multiplatform photo manipulation tool.
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.
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
PhotoStyler - PhotoStyler is a classic Photo Styling application for Mac OS that enables you to enrich your digital photos with beauty by providing you with a bunch of amazing tools.