I'm no GFX expert but heres my two cents.
Your "Brock Lesnar" text is very choppy. It looks blurry, and buldgy to me. I think you should work on that, as judging my your other graphics the text is a large nag for you. Some work on that can go a distance.
Your blending of the PSD's is average. I think the one towards the left is better blended, but thats my opinion. The design in the back, I believe it was already done, but its good, and if it was original then thats awesome.
Anyways, your direction was cool, and it looks like something C4, or WS would try to do. A good sense of your own flare in this if you ask me. I dislike the gray/smoke thing you did on the PSD to the right. It makes it look awkward, but I think you should have toyed with it more.
Overall, its a seven out of ten for me. Its pretty average, but I can tell your improving.
Thats Diesel with his two cents :thumbsup:!
EDIT: This is all directed to the one you did with the tutorial XBA.