This one... I got distracted by the details of the penguin (the Tail ... that's evil, but also the small lines of the hand ).

I redid the snail one after some time, while practicing the flowy-ness of the stroke. I feel like the snail have gotten better. The boots are done a month ago, while I tried hard just getting the proportion right ( and the shoelaces !!)

Here comes the rhinosss. I like how the light and shadow line weight exercise adds volume to the rhino. And after watching the demo, I can see how the hierarchy of importance of line weight that I did here is lacking some contrast and organic feel to the strokes ( i.e. there can be more variety within one line, especially if it's the line with much emphasis like the nose).

I've been trying to draw the upward tilt portrait with reference to this photo of Eddie Redmayne, but had a hard time finding the centre line of the face, the line extending from ear to corner of the chin (as in the Loomis head), and having the facial features align with the tilt. Any suggestion on improvement? Thanks for reading!