I like it too. Very nice, and definitely my favorite commissar sculpt today.
If you really want criticism, my only thought is that the red on the lower tunic seems to have been picked for color-matching purposes with the interior trim on his greatcoat. And while I'm sure some commissars match their clothing... well, I bet most don't. I'd make that lower tunic section black or grey.
Ironically I hated this sculpt the most of all the commissars in 4th, since in those days I could never see why I'd pay for a bolt pistol upgrade. Oh how things have changed.