it's freeeeeeeeeeeeee! In Psykopaint you can paint and stylish on photos or on a blank screen. The greatest thing that Psykopaint released is that you can send your paintings as postcards anywhere in the world for just 2$ or as e-cards for freeeeeeeeee (again, yes!) !
All you must do is download Psykopaint on your Chrome, from Chrome Webstore and create a freeeee (again, yes, again free) account and then ... you're ready to paint and send your creations to your friends! See here a video about Psykopaint:
P.S. I insist so much on the idea "free", because it's so amazing what you can do with it!!!