This was tough, but I did my best.

Ugh. I'm going to try this again. I had a lot of trouble with it.

I messed up the notan version a bit, but no big deal.

Ugh. My proportions are off yet again.

I did my best here. I tried to choose shadows and halftones that weren't super-obvious, to make this more of a challenge. I may have bitten off more than I can chew.

I decided to challenge myself and do this in graphite. It's clear that it got away from me pretty early on (stupid proportions!), but this is actually much better than I expected. I'll probably take another try at it.

4B and 2H. Took just under an hour. Lots of adjusting!

2B(I think) and 2H. Took a little over an hour.