WOW! That's actually AMAZING. My profile picture is one I got from Nova Skins. That image is Nova Skin quality. I really like it :D
It looks really nice. My only advice would be to add some sort of background and setup the lighting better. Also, I'm not sure if this is just me but the edges seem a bit choppy. I'm not sure what program you're using or how to fix it so I would suggest looking up a YouTube tutorial or what-have-you to try and fix that.