Cant get Asa mitaka to look right

so i dont really do digital art but a friend of mine wants me to draw asa mitaka from csm (chainsaw man) for him and i decided it'd be great practice...long story short i cant draw her right at all especially wen it comes to her aquarium date clothes, references dont seem to help much and she just looks...off, i really want this piece to be atleast decent for them so i'd like to get some help on this (she is supposed to be laying down in a field of sunflowers and smiling at the sky, yes the lights on her hair is meant to be that sharp though do tell me if there's room for improvement)