I did these before the video. Looking back at them, the second rhino could use some darker shades for more emphasis, but I think the thick lines are in the right spot.

Sketched these before watching the demo.

Well it's something,

This was a fun way to warm up. I had to be more conscious about the pressure I was putting on my apple pencil to make thick and thin lines.

My attempt at the pears. I did these digitally. I struggled with shading for sure but felt like I got a little better by the 3rd pear.