I'm not really digging the 'fight' text. It just seems out of place amongst the sig, as well as those few lines you've added to Aqua's hair. The rest appears great, it's just those two things.
knowing im not the best i can tell i am not going to give the best CnC but heck no one goes here anymore ok then: the random lines really pop out, but not in a good waywhere they seem ok is by her hand. Her hair really blends in with the backround which pretty much swallows Aqua up maybe tone down the purple a tad bit. The 'Fight' text i am also not getting used to, i think it would look better without the text, Not to mention the random tan in the lower left looks out of place. again im so sorry i can give no CnC, but you seriously should not be ignored around here, seeing you are possible one of the best graphic artists here EDIT: i just reread this, i know my grammar sucks but im too lazy to fix this
The colored lines have got to go. Specially in her hair, they are really distracting, the same goes for Ven's hair. It really looks too distracting. I really like the lighting, and the Smudge, or is that C4D's I can't really tell, but it looks good. Are those japanese letters distorted, next to her? Remove that or blend it better. I also like the effect given by the gradient, and as opposed to others, I like the text. Maybe add a few textures, or do some smudge settings that make it look better, because right now, it seems a bit messy. I like the pen-tooling on her arm, but the arm itself is too distorted. Maybe add some fractals, and a disintegrating sort of smudging look. I'm understanding the idea, It just seems a bit messed up at them moment, but it looks quite good. Sorry, I'm not that good at CnC, but I hope this will do.