Face looks pretty smooth as far as I can tell. I think the boots and the tunic could use softer transitions to the highlights.
Also, for black boots try highlighting to a dark blue, dark green or purple. Gray really dulls black.
Finally, and the biggest bang for your buck, would be to change the vials he's carrying. Vary the colors, and paint them as though there is an air space in each vial. There are many good examples of the fluid in glass if you look for flamers here.
Looks like you've got the basics down, now focus on the details.
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