this is an excellent piece and you should be proud. That said there seems to be something off about the shadows, what direction is the light source coming from? it looks like there may be multiple lights. Feel free to ignore this because it could just be because its a photo of a painting being viewed on a computer. Anyway I agree with afiboy69 the colours and range of tones make this a really special piece and the frame really compliments the portrait, and it's now one of my favorites.