I would like for you to maybe mess with the order of the layers and their opacity a little bit. The smudging on the right is very simplistic, and it actually looks like a brush found in PhotoShop Elements; this is not a good thing. You have got some nice concepts going on here, but I'd like to see it tweaked a bit more. On top of that, it would be nice if you could introduce some bright blues and some cyan, I think that it would look pretty okay.
Dunno though, not the best with PS.