That's one bad-ass cop.
That must be the only police precinct in the country with access to hand grenades.
I can tell you truly put effort into this, and while it's definitely not my cup of tea, and I find such things rather dull, I'll acknowledge you for the obvious care you put into your work.
I kind of like the pupil-less eyes thing your characers have going. They're a bit crudely drawn, but I kind of liked that too.
Keep practicing. Refine your style. Good luck.