Too much fun with this one. About 7-10 minutes per sketch.

25 min., got a bit hung up on those details, but that's why I'm practicing. :)

5 min. poses

Holy heck! This brief video improved my ear drawings 100%!! I know it seems weird, but it's the little things. The bent y-shape and tragus interactions simplified my perception of the anatomy of ear sooo much. I was making it much more complex than it needed to be and ended up over rendering this little piece of anatomy. Thanks!

Would check out a course from Liandro in a heartbeat. Great vid!