A difficult one to comment on. Based on your comments I hope you are pleased with your score. This is a lovely composition. Your subject radiates a sence of peace and calm that is superb. Per the comments from Simpa.
Given that you had a static subject I would have liked to see more use being made of the raking light across your subject. The light and shadows are doing a beautiful job of showing off the textures and folds in the clothing. Not sure, but I think a slightly higher POV with more of th etop of the body in the frame would have shown this off better. Maybe.
It is my hope that these insights are helpful and constructive. Please feel free to PM me if you have any questions regarding this critique. And please remember to mark it "Helpful" if you found it so. Good luck with future challenges.
Great shot, love the look, did he know you took it? Would have been funny if someone walked by and thought you were taking a picture of a crime scene. Love the sharpness and composition. Well done.