So lately, I've tried to use Corel Painter, because a lot of company requires people who can handle this software. And when I get my hands on it, it's incredible! The brushes are amazing and realistic. The interface is completely different from Photoshop though, so it takes time to get used to it. But so far, I'm enjoying drawing with this software. Here are some of the first drawings I've done using Painter (and Photoshop for finishing touch).