well granted all the other blokes are right in the fact that you do have a nice body. Layer masking was done well, but if I have to make a suggestion for improvement it would be don't mix live models with cgi backgrounds from games. Though I do understand the whole tomb raider theme going on here it still detracts from the picture a bit. So 2 routes you could have taken here that I see would be to find someplace that looks similar & taken photos of that, or made yourself look more cgi or cartoonish maybe, which would have also been cool.
Sorry if I'm a bit of a downer, I just hate seeing a wall full of other oggling men while some real advice or suggestions could be given. I mean, this is an art site right?