Loki, everyone's favorite villain..
Nice job! I think the only thing you really need to work on is not over-exagerrating the details (I have exactly the same problem, a speck becomes a dot, a small curve becomes a bump, etc. It's really hard to get rid of lol), but otherwise, it looks very good.
A perfect drawing. Who is this guy, seen so many drawings lately?
Looks really good nice work