You're pretty good. Btw, in response to your description, you find the "roughness" desirable because it alludes to detail which isn't there. The mind perceives blur on objects as a material attribute, it doesn't think an object actually looks like that. And because the detail is easy to perceive, it allows the viewer to abstract away at more general ideas about the world inside the picture. Actually, the same concept applies to a lot of other things, as well.
its interesting how his characterization seems a lot less malicious in BBRofOZ than it does in this picture. i'm glad you went with the more laid-back, introverted personality. it lets him be kind of a common-sense foil to dolly's blithe optimism