The mapping is awful, you sir have made everything way too large. Is that a lighting bolt going through his eye? because that sure does not look like a scar, or war-paint of some kind. As I said, the face is so stretched it doesn't make any sense, monster head you say, that looks like a predator to me, do predators in the wilderness have eyes on the sides of their heads? no, not really. Predators have eyes right in front of them, to focus on the prey.
The teeth don't make sense, they are bigger than the eyes and are put in a wrong order.
Let's compare.
What would it be worth? well, if you find a buyer then around 50 TC. Also, you said you're a begginer, don't start with the 'Eyy! But I'am a beginner, stop being an ass" type of comments, I'm just giving you
very honest CnC, my advice to the beginners always is: "Don't post your stuff here, until you're a professional, or atleast 'good' at it."