Looks ok but try adding details around the head like fur, scales, bumps, etc.
Also try making the eyes the same style as mouth cos it looks like different art styles imo
I would rate it an honest 6.5/10
It really depends on your preference.
It could be cracks in the skin, he could have scales, elf ears, snake tongue, bandage, scars.
Just try some stuff out and if you like it keep it.