I really enjoyed the rendering on your first five minute piece, really blocks out the figure and gives a definite form to it. For your second one, it was coming along nicely as well before the time went out, and one thing I think that'd really help your speed is applying more or less pressure. The lines are all very one size, and even if its not as defined as it could be with more time, adding line weight to imply shadows or light could really help bring out a figure before run out of time.
And for your looser sketches, don't be afriad to loosen up more! Some of the lines are pretty straight, I find even working with a slightly more curvy or "s" type of line when sketching out a figure fast can help imply more natural movement.
Otherwise, great work so far!!
edited this post on June 13, 2020 10:12am.