Yeah i don't even know how you get onto the art portal, but I do love critquing pieces and not holding back.
Now the anatomy on this piece is fine, minus the hands. Her right hand looks pretty messed up. Also is that thing in the sky supposed to be the moon? It looks more like a glowy blob. I think the shading on her thighs needs to shift a bit to the left to correctly reflect the moon in the sky. In my opinion you should have also added a bit more of a background, I mean you could have at least added stars with a flat horizon.