My penguin! All and any feedback welcome, what should I be doing differently?

Spider hand, really enjoying the looseness of this exercise. The hand and especially the width of the hand looks a bit off proportionally to me. Thank you for any and all feedback!

The lvl 1 boots assignment. I layed in the outlines with blue pencil before the final contour drawing. The extra time in layout seemed to help quite a bit. All and any feedback is welcome!

My first attempt at the snail. I think I'm still a bit scratchy and will work on keeping my lines more continuous and distinct for the next exercises.

I also attempted the intermediate drawing. My first portrait drawing. I found getting the drawing started and establishing proportions quite challenging. Overall, I'm pleasantly surprised with the drawing though I know there is a lot of room for improvement. Any and all feedback is welcomed.

Did the exercise but didn't take the opportunity to print. I looked at the pear image on my screen. Lesson learned. My values, especially at the bottom of the pear were too dark and I didn't pick up the third value in the large shadow to the left. :-( Really enjoyed the exercise, however.

My level 1 pear. I think I need to work on my simplification and my shadows feel off.