Nice job on your caricature @richm! I can definitely see resemblance to your friend. The only note I’ll give is that the exaggeration appears more subtle than extreme. Maybe 20% exaggeration. I would have liked to see 50% or more exaggeration for the challenge of the exercise. But still, you’ve certainly accomplished the homework.
It’s a B+ in my book – good stuff!
Your character concept choice is a good one 👍