I really enjoy how much character you bring through with this portrait just through the linework!

It's a nice cartoonist style, kind of reminds me of Calvin and Hobbes with how the line is used with specific features like arm hair, glasses, and wrinkles.

I feel like if you did a digital wash of watercolor over the linework, you could help fill some of the empty space with some depth.

Either way, really nice piece and I hope to see more from you!