They're VERY nice... but personally, I wouldn't buy or trade for them. Here are my reasons, and these are things you could improve on a bit (if you think you need it):
1. The head... it just looks a bit warped. Not deformed... but warped... like if you had taken a picture, put it on photoshop, and warped it a bit. Maybe too smudged? I dunno...
2. The topline and the neck. They could use a bit less smudging, and a bit more shaping.
But... well... I couldn't do that for a LONG time... haha...
Do you use a tablet? Or a mouse? Because sometimes that makes a difference in how things end up.
They're great though!!!