I notice some brush packs inthere I use a lot as well. So at least you got a nice base to work with
But I think most is said already, there isn't a real flow to it, and the clolour look kinda random

So does the placement. Anyway, this is a nice start. Learn to work with the brushes a bit, and try creating more flow to it. Or a focal point.

I'll be glad to help you out as well btw. Just add me to MSN.