if i can give some suggestions i agree that her underwear should be light blue, adding some green makes sense for the background which is a mix of darker blue and teal. Her hair have no red tint so i dont understand the brown, a gray with some green was a better choice, and her eyes are red violet bot brown. you were more accurate with the blonde girl but i dont understand the choice of lavender color for lips and nipples when we see that its simply pink. Also i dont understand why give the man a darker skin, in the original it was maybe used to give a mysterious vibe to him, but it doesnt make sense with colors (might even make sense to leave him uncolored to give the same vibe of mysterious and unimportant character). Also you do the same with the blond girl for example page 18, i think just adding saturation in the red is a better way, both for the blushes (which is a concentration of blood not a pale dead lol) and for the shadows on her body, when light doesnt hit objects the colors should get richer not the opposite.