Looks sweet!
Hope you don't take this the wrong way but some constructive criticisms. On the layer of you, bring up the blue some to help match the background some. It will help the illusion. Maybe even take the red down some, not a lot.
And I found this tutorial that I think would really make this pic awesome.
http://graffititools.blogspot.com/2009/05/create-ice-cold-image-effects.html