I love your composition, using the model as the horizontal line in the image and not the back ground. The lighting is warm and soft and very pleasing. Only negative for me is the bottom right where a bit of the model's leg is in frame - this serves to draw the eye away. The image might benefit from a slightly tighter crop to remove that or even clone it away. There is enough negative space at the top of the image for you to be able to crop and keep the image in the same proportions as it currently is. I did it myself and it works
I agree with the composition and lighting, and the tattoo is interesting. About the crop and leg; I think both ways work. Her looking suspended might be interesting, but the artist will always know it has been shopped, leaving the photograph less pure. Also, the viewer notices when something has been deliberatly kept in and appreciates that what they see is what was there. A tighter crop I believe would work against the composition and make it a less interesting mood.
thanks for the comment, very interesting! I preferred this option cause to me it balances the composition, preventing to make her appear suspended, but indeed it's a matter of taste in m opinion, and you might well prefer your crop