I like the render but I'm not a fan of the bg. It looks dull and unfinished - if you did more with it, it would make your render look a million times better. I would try switching up your focal point a bit as well. Centering everything isn't always a good thing, some things look better unbalanced.
parts of your render seema bit sharp, if u dont alrdy, render it with 16x16 Anti-aliasing, and dont use sharpen effect, unlees you are going for a little sharpness, which u could just add in with phoshop