It's always harder using a real person as the focal for an image as we know how they are supposed to look and if a image deviates from that it looks unnatural. That is the problem here.
To counter this, I'd suggest trying some of the following:
- erasing the dot effect from her body
- erasing or lowering the gradient map? from her body (she has a purple/grey kind of hue right now)
As for the effects, choose some colors that would suit the girl. For example, I'd consider what coloured clothes she would look good in. Weird way to work it out, I know, but think of the effects you pair her with as clothes or accessories. Personally, I don't think she would suit green.
It's an unorthodox method, but it seems to work lmao.
I think you've also trapped yourself by using a large canvas. She only takes up roughly one half of the image. For vertical images, traditional placement rules do not apply. Chop off most of the left side, and you'll have less room to fill (meaning you can focus on a smaller space = easier) and she won't look quite so awkward.
I hope this is the type of CnC you are after.