
Or a shadow boss?

Quote from SaltOh hey these aren't half bad. Music is like my life yo.
I recommend you learn the basics of drawing like gesture drawing, form and especially anatomy more. You're shading here is very inconsistent. Some places look flat while the others look 3D. You should study the basics of light, shadow, and plains and apply them.
Here's a 16 episode series on light and shadow:
https://www.youtube.com/watch?v=0q-LZVFZuGE
Traditional drawing techniques:
https://www.youtube.com/watch?v=bDQgM7C2Kdw
There's a shit ton of resources on form and gesture. You can just google that on your own.