Woooww! I love this. It makes me feel relaxed and somehwat happy. Perhaps its the amazing use of colours! I have Photoshop CS3 and I'm hoping to get a tablet this ummer. Really nervous because I know it'll take AGES before I can make works like this!! ^_^
One of the things I love about this (and your work in general) is that, at first glance, it looks simple and beautiful. Then I look closer and all these other wonderful details start to pop out. It's as if, the more I look, the more there is to see.