Lighting on his make makes no sense and needs recolouring, you've got a general blue/grey light source on the nearby trees yet he's got a fairly heavy yellow hitting his back, so that needs changing. There's also a random line on the right of the tag. Otherwise, could be good.
The yellow on his back could make sense (as if he is just entering into the area of trees) if that's not what you were thinking then the yellow lighting is completely useless and out of context.
lighting is all wrong as said, and to be quite honest, it doesnt look like you did anything besides render the stock and add a bg.
Again one of my faves by in yet another Sotw Tone down the lighting on him as said before. The atmosphere is pretty smokish/dark so the highlights on him need to reflect that as well. V3 has my vote
Prefer V3 but I still think the lighting on his back needs changing to be more in-tone with the background. Yes, he could be entering a group of trees but then you'd assume at least some of the light would make it onto the trees. Maybe add some fog around him or something?
I was thinking about fog, but I decided not to because when there is fog, you can't see it if there's something right in front of you, which he is. If he was in the distance, yes I would definately add fog, but it would just look weird if I added it in front of him. I think I'm gonna go with v3. Thanks for the comments guys. Feel free to keep them coming.
Assuming you mean V3, it's definetely the better out of the 3. Thought that line is still on the far right, needs a quick tiny crop