Excellent work! You really captured his thoughtful expression well, especially in the eyes.
I find that pen sketches like this always have such an organic, almost "living" vibe. I've heard it said that sometimes we prefer sketches over clean lineart because our eyes see everything - especially people - in a "sketch-like" way because of all the small motions we make and perceive. Does that make sense, or am I just talking crazy talk?
RE: Drawing A Portrait [1221]