Very well done, you capture the light spectacularly well in all of your drawings! Question: do you blend with some kind of blending tool? or do you do light crosshatching, or..? I'm curious about this.
I drew this same thing in charcoal totally using your picture as a reference, to figure out how to do minimal drawings like this. Do you mind if I post it? I can put a link to yours in the description if you like.