I realize the person above said it wasn't too blocky, but to me the gun is simply too simple and blocky.
And that hand looks sort of strange, the thumb seems to be out of place and there's some strange geometry going on by the start of the fingers.
Here's a picture of a hand I made a while back, should show you how to do the geometry. And I do realize that it seems pretty smug of me to tell you to correct yourself from my work but it's the only hand picture I have. And it obviously isn't perfect, there are a few non-planar faces and such but again, it's the only image I have at the moment.
Alucard94, the member of the future of the past.