Thank you. It's right, the first is the best. For the two others, I have testing some others schemes. The white is the more realistic : I have wanted to make a gargoyle like really one (like in cathedral of Notre Dame de Paris, for example), but work in white is not simple : if someone have advice for that...
I think the top one is significantly better than the other two. The stone effect you created on him is really nice. I'm not sure what happened with your photo montage though?