Those renders have been killed to death! (Yes, you heard me, "killed to death!").
I dont think it frames particually well, and I dont think you can see enough of the background. Its not particually bad, most things are kinda average, average render, average background, simple border, text is a little hard to read, I like the stroke on the renders, but they take up too much of the sig but dont draw enough attention to themselves. Dodge and burn them a little more and try and get some central lighting on them if you want to improve this attempt.
Cd.