Colour me impressed! Very clean outcome, especially on the bones. Nice ethereal look too. What I would suggest is highlighting those ethereal bits more (green) by taking your green and adding a bit of white to it. So take the green you used, add a small bit of white, go over the raised bits. Then add a bit more white and go over the raised bits in finer detail. Rinse and repeat adding more and more white for a really sharp effect. Just make sure your paint is quite runny when you do this and use very little paint on your paint brush otherwise it tends to run everywhere.
Other than that...it looks great! I certainly wasn't that good when I started!