Spirits of Passion

The lighting on this is simply lovely. I like how you did the glowing effect from the green to show on them. I will point out, that some parts of the glowing would be less pronounced depending on where it's at, but otherwise, it's good. The dancing pose is quite fluid and nice overall and I like how you integrated the feet coming out of the, portal? Well done in the transparency.
As far as their anatomy- the one thing I would point out that seems to be happening on both of them, is that their heads are a bit too small for their bodies, but not by much. I know there's an angle to keep into consideration, but his face at least seems a little squished. Her visible shoulder is a little too far out, so it looks somewhat dislocated and her arms overall are a bit too long. The elbow should be equal to the distance of the waist line. I know she's curving, which would indeed make one arm look lower, but if she were to let her arms fall at her sides, her hands would almost be touching her knees. Her right arm, if it was straightened out more, you'd find the correct length. (Also, it would flow right over his crotch, so in a way you could 'hide' that bit w/out making him look like a doll figurine. xD).
His muscles are very well defined, though I would suggest since his arms and chest and abs are so defined, you should look into making his legs just as defined, because they lack the details of the muscles there, it looks a little unbalanced. Either you need to tone down the overall definition, or put more into his legs.
I love her hair, the flow of it and the shading is well done. There is a spot on the left side where there's light reflecting on top. Considering that there is no light source coming from above them, that part of her hair should be cast into shadow.

Overall, well done on the piece and keep up the awesome work! <img src="e.deviantart.net/emoticons/b/b…" width="15" height="15" alt="" title=" (Big Grin)"/>