Hey Frankie. Nice image. Let me tell u the good parts of this image first
Composition: Good that you didnt keep her in the center and liked the angle
Natural Light
Model itself :)
A couple of things you could have done.
1. Vignetting effect
2. blurred background
3. Use of reflector
Hey Pravin, Thanks for the comment. I'll try to learn how to do this shot with your suggestion, maybe I could try to find some tutorial in internet as I'm not able to use Photoshop. Thank you very much!