Okay, let me preface this by saying I'm in no way butt hurt you decided to take a stab at the One Down piece as well, I love seeing that kind of stuff. That being said, I do believe that this is far beneath your capabilities. Maybe it's cause you're out of practice, maybe you felt restricted by the line art that wasn't yours, but I can't quite understand how you came to make some of the decisions that you made while coloring this.
I think the turquoise amidst all that red is definitely a cool choice, but you could have pushed it. If you're gonna go with a color scheme that other wordly, go all out. Azure looks a little dead to me, her skin tone is quite unhealthy - I don't know if that was intentional, but it seems off, to me. And where are all those pretty hues you're so good at incorporating?
The smoke in the background is basically the only piece here that can clearly be attributed to you, in terms of painting. But the soft blurry smoke clashes with the really crisp texture you added on the background. The smoke, which is closer to us, is more blurry than the texture, which is actually covering the sky and would be further away and that kind of throws off the depth.
The mound of flesh on the bottom looks nicely wet and squishy, but the specular highlights seem a little all over the place and only when I squint my eyes can I make out some solid shapes there - try bringing that over into the final as well, really push those forms.
I'm really not trying to be an ass here. I keep looking back at that teenage vigilante poster, or every single illustration in your first post of this thread, and those all look so sick I'm a little baffled why you didn't give Igo's lines a similar treatment. Not in the sense of painting over the lines and transforming this into a typical Murdoch piece - I understand you want to respect the lines. But you could have done that kind of painting underneath the lines for example, maybe color the lines, partially, if they pop out too much. I mean I'm just guessing at what happened here, but I think if you had cut loose a little more, incorporated more of yourself in there, it would have yielded a better result. But I still love you.