It looks pretty good to me, I like it. There are two things I would do though: add some lighting at the left of the render and make it look like it comes from behind, and add some contrast or levels Good job on it
looks great bro, yea a lil more lighting and its fine, topaz is a sharpening plugin for photoshop has a few other options as well
Finally something else than red/orange Looks nice, text could be better tho, the font doesn't fit in imo.