Have you tried Sktchy?
The concept is simple: People upload photos of themselves, you sketch and post, and everyone enjoys the feedback. It’s kind of a self perpetuating feel-good loop – and there’s nothing wrong with that :) Anything that motivates you to paint right?
You get a steady supply of people to draw, they get a kick out of being drawn, and eventually you have a little collection of your favorite selfie photographers and the sketchers who sketch them.
The app seems a little light on the social networking. People can (and do) leave comments on your drawings, and you’ll get feedback right away in the form of Likes (they call Wows). But that’s it really. No replies, or chat history. Also, artists can’t message models, which is probably a good idea.
There’s a noticeable self-selection-bias towards women and girls offering themselves up as muses. You’ll have to scroll for a while to find a dude. You’ll probably find a cat first. But isn’t that the same in any art gallery?
Persist for a while though, and you’ll find any type of model you can imagine.
So – if you feel like sketching someone, and don’t want to be running out to life drawing or the local cafe – download Sktchy to your iOS device.