Everything is so beautiful! It looks so pro!
I suggest you work a little on your artlines. It seems good at normal size, but if you zoom in you can see that it lacks of smoothness at some points (for example in the cuffs)
You could also either make the line disappear or make it a little more "dynamic".
You did an awesome job with the posture, an awesome job rendering the golden effect where there is gold, the anatomy is great, the posture, everything!
A lot of professional work aren't that good!