Since Ap doesn't appreciate my work... maybe you will :)

[Miril]

C&C please

[Ptka]

Awesome colours and some great effects.
Blending could be a little better, it stands out too much.
I think you could have done something coming out of spray nozzle, some nice colours like you did near the arm.
I also think you could distort things a bit more and try to make it flow better, there are a lot of nice curves that you could utilize.
Nice work!

[Dom]

I love the effects on this, although I think the render should be blended in more I also think you should add some effects coming out of his can.

[Gallagher]

Colors are a bit dull and the effects in the bg make it look little messy imo. Not bad, just like to be more straight foward with my critiques.