Looks good Marc, especially like the way you've painted the coat, but as a personal opinion, I think the eyes might be better painted looking in the other direction?
Best wishes, Gary.
Smashing job on what as Brian says is a very challenging bust.
The only small observation I have is you could consider deepening the shadow/shading inside the cuff of the right sleeve.
IMO as it stands it just seems a bit bright and draws the eye away from the rest of the figure.
Must look very impressive on display
Cheers
Derek