Heya!
I'm redoing a drawing i made some years ago, and before I advance with coloring- I'd like some tips for how to improve it

I'm going to spare you from seeing the original drawing but I still feel there's something missing in this, especially details in the environment. The only thing I plan on adding is some tagging on the wall behind the women, but I feel like I could put something in front of the woman to the right to add more depth to it? Critiques on anatomy and facial structure is needed too, I want to make this as good as possible before I move on!
If it's of any help, it's a drawing of my friend and I's GTA online characters so anything that will boost the GTA vibe is good
(I do see that the woman to the right's butt and torso is too long and thighs are too short, other than that I'm empty!)
Would really appreciate any feedback/critiques!