How could you ever paint this in Photoshop? Painter's brushes just work so nicely when you have a tablet, I just couldn't live without them. With Painters's "just add water" you can actually push colors all the way across the screen, something you could never do with PS "smudge" tool. On the other hand Painter reached it's high point in version 2X,the interface sucks, and the newer versions crash. And you would still need PS for everything but the actual brush strokes!