I don't think you're best. The main render is too...plastic? glossy? I dunno, I don't like it though.
Clean it up a bit. Text is okay, but this style is being used a lot by a lot of people.
Cool colours and lighting.
It's okay, but I don't think you're best by any means.
Yes, exposure would make a difference.
I don't think I like the bg...it sort of works but I think it could have been done better. Nice other than that bro.
This would almost be better without text. If you want to add text, you should try a bit more than what you have here.
But in all honesty I love this besides the text.