the real thing looks prettier :p
But this one's drawn pretty well. It's not your best work though.
I think you should have chosen some different colours for the skin. Most of it is okay though, it's just some parts seem really red, like the left side of her nose and that part just above her eye.
And i don't agree with the dude below me, i think that smile's friggin brilliant. Only thing i don't like about the smile is that it draws all of my attention. I mean, there's so much detail in there but i can't see it cuz i'm constantly looking at that damn smile!
Just one thing i think you should watch out for:
Since you got your new drawing tablet and started drawing in colour you really improved. A LOT!
But i think you're kinda starting to lose the thing i liked best in your pencil drawings, and that's the natural look. Like in 'more of the sketchbook': (i still think that's you best piece of art) she looked damn pretty but still looked natural. And your latest artwork looks really great and it's unbelievebly realistic, but i think it looks a bit too...well... a little too 'barbie' if you know what i mean.
So if you can draw with the amazing detail you're doing now and give it a more natural look like in your pencil work. I'd be dying of dehydration cuz i'll be drooling and looking at the computerscreen all day XD