Ha ha Haaaaa! Now this one is a knockout. The colors here are brilliant, especially in the eyes which I consider to be the most important feature when drawing a face. This is a great, provocative scene you've created here and I love the color tones you included, in particular within Poison Ivy's hair such as the glowing highlights that almost give it a sense of dreamlike fantasy. Their skin is what really steals the show, however, with their smooth, pale features. The coloring there is gorgeous. Very well done. I also like the joker card touch as well. Very clever.
There is still a bit of scratchiness in the lines of the hair that give it that stringy, limp effect as well as the cross-hatching lines used in the texture of Ivy's clothes that doesn't seem necessary. But altogether a fine piece that I have no doubt will capture a lot of attention in the coming days.