Alright, here we go with the continuation, the lower leg! First, I tried nameing all the muscles again:
And then I drew along the video:
I think the front and back view looks fine but the 3/4 view looks like hot garbage. I hadn't planned on drawing the lower leg when I was drawing the thighs, so I had to sort of "patch" it in, making it looks pretty bad. However, the important thing here is the musculature.
Critiques are welcome!