I think it really needs some green smoke in front of the bristles for the best effect. Right now it looks like obvious photochopping.
Great idea, tighten up your execution that little bit! :thumbup: The devil is in the details.
I would prefer to see the hands a little under-exposed. The focus point is supposed to be the smoke on the brush, but I find my eye moving to the hands because they are so bright. The smoke is competing for attention. Does that make sense?
I like it. great creativity and effort. It's a nice shot.