Looks great! You've done a really, really good job with the lighting! And the anatomy is awesome, as always. And I would say that's a responsible use of a lens flare. xD

For critique; I'd say the only thing that might possibly be wrong is the face being pink. Remember that what you see is only light bouncing in to your eyes; so if the only light is the green light coming from the goblet, the only light that bounces will be green, thus making the entire character also green. Now, if there was a secondary, white, light source on top, it would work; but if so you should probably put a little indication of it in the background. Just some subtle light clouds or something like that.

As for skin texture; what I've generally found to work best, is you shade it as normal making it pretty smooth with just subtle hints of brush strokes (Like barely visible, just a little variation so it's not baby smooth); then make a new layer, set it to overlay, and use a scatter brush to paint some light and dark speckles (You can just set your brush to scatter, but I've found that custom brushes tend to look nicer). But be sure to do them small and subtle; it's very easy to overdo texture, and having too much will make the skin look really, really rough.

All in all, though, excellent work! Can't wait to see your next piece! 8D