Mikay, this is amazing. I can tell that each line was thought through, despite the time limit. Your poses are fluid, easy-to-read, and beautiful to look at. I can't visually see anything that, from my perspective, you could improve upon. However, might I suggest trying some color one or two times? (Sorry if that came off as mean, it wasn't meant to be that way) Grab a few markers, ballpoint pens, or crayons and do one of the figure sketches. Maybe try assigning one or two colors for certain things on the longer-timed sketches, etc. Other than that, this is super good, and definitely keep up the amazing work!
SnailsAndRavens