Hey!
The lines are very clean not messy but just awesome plain picture.
The detail is wow... super! :)
I really like how you draw the lines and the monster look furious and deadly!
The style is nice using black and white like negative and positive works great.
(You can just mess around your picture like invert your black and white lol just saying...)
I think adding a background would be nice but that fine!
I hope you continue to work on your art!
Good luck.