It looks like the head, torso, and legs started drifting apart in proportion, becoming individually larger the further downwards. A guideline that helps as a quick measure is the vertical length of the head. From the neck to the top of the pelvis is roughly 2 heads long, and the same measurement of two heads applies from the hip to the knee. I highly recommend this video for a more detailed dive into human proportions: Human Proportions – Average Figure. Hope this helps! :)

Looks good. I would post more so we get a better feel for development. Maybe post 3 or 4 small sketches.

Thank you! I really like the lessons so far.