Hi, feel free to take this with a grain of salt because I am no expert. The only thing that I can say is that the lighting on her face is different to her body. Currently it seems like you have two light sources, one that directly hits her face and one that only hits the front of your body. I understand wanting to light up the face to make it catch the eye since it is the focal point but going off the lighting on her body, the left side of her face would be more in shadow in the same way as the back of her body is. The other thing you can do is light the shoulder nearest to us in light and the shoulder further away in shadow. That way the lighting would be facing her directly and it will keep her face brightly lit up while portraying correct lighting on the side of the body facing the viewer and shadows on the side of the body that is away from the viewer. Regardless, this was more of a nitpick more than anything cause I wanted to help. Your artwork in itself is both beautiful and amazing. I have a lot of respect for your skills. <3

Looks lovely! I like the butterflies and don't find them distracting but adding to the portrait. The only thing is that They didn't immiedliety read as butterflies to me. I would maybe try to move just a few of them towards the camera and get some sharper shapes on them? I'm no expert on face anatomy tbh but it seems like her chin is a little too sharp and eyes a little too big? Possibly the green is a little too strong if you were going for realism. Already looking great tho!:)