Toronto-based photographer and artist Elias Mina works in both Painter and Photoshop. Eli writes, "I used your Smart Oil brush in Painter (John's Smart Brushes) and then moved to Photoshop to use mostly your brushes to paint inside and around the window. I can't make up my mind which is my favourite! I hope you don't mind me sharing with you my excitement. I am applying textures to selective part like sky, etc. and sometimes to a whole image. What a difference they make when I get it right."
You can see more of Eli's work at his web site.