FotoSketcher - Turn photos to paintings, drawings and sketches. FotoSketcher is a 100% free program to turn your photos into beautiful art, automatically.
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
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.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
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.
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.