Alright, I can't decide which one I like more... I like the blue background, but the silver looks sleeker...
Tbh, I prefer neither. They're wayyy too simple. Literally, all I see is a b/g, a render, and some text. Not to mention that it looks like there was really no consideration as to how they would fit in together. I would say work on depth and blending and effects...all that good stuff. Look up some tuts...unless you made this from a tut...then look up a better tut...lol. Keep practicing, I guess.