This is really good, I watched some of the live stream and I knew you knew what you were doing. The only thing that I can tell that's a problem ( this is my personal preference on what I'd would of done) is that a lot of the colors blur into the background (I don't know if that was your intention), if this was on purpose then I'd have sharper lines to bring our the face, because to me the face seems dull ( not as in it's bad just that it blends together). You do see the face pop cause the color , but the face doesn't pop as in itself. Like humans naturally look towards the eye, right? so what I'd would of done was in some way was to make sure this idea, or if you wanted to bring out something else instead of the face in the portrait, lights and darks can do this as well. Overall, I think you did amazing on this ; the level of skill and technique just blows me away. I wish I were this good!