I recently got an app for my iPad mini for drawing/painting. Of course, I had to get a stylus, as well. It was pretty clumsy going at first, as you can see by the first couple of samples. Even writing with it was tricky. But it became kind of addicting, once I got started. I kept adding layers to the faces on the bottom row (works in progress), trying to blend skin tones with the softer paint brush. I’m hardly a portraitist, but using this app is really helping me improve. Right now I’m just having fun with it. I guess I should mention the app is ArtStudio by Lucky Clan and it’s free!