Really nice...
Little crit
I like most of the skin tone.. the leather patches on his brows I find a bit out of place, might want to get ride of that or tone it down a lot..... The eyes seem to be a bit out of place as well, just tone them down a bit if you want.. would help him become a bit more realistic... The eyes seem to be a different style than the rest.
The rest of him is great. I love a lot of the skin around the mouth and chin areas, very well done... Horns look great..
Keep up the good work...
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb