I feel as if I could have pushed the line thickness a bit more, perhaps I was overcautious. Any thoughts or critique?

Doing level one but I decided I wanted to try this exercise so I did a bear.

I feel l made the penguin a bit too thin, tried to correct it as best as I could without erasing it, any thoughts?

Might have gone a bit too far with detail and lost line quality with doing the laces. I think I got a bit too invested in getting details in when I should've kept it more simple. Thoughts?

Before and after watching Demo, not sure if I did better or worse on my second time around though.