LOL, I hope that you and ballpoint pens can reconcile ~ really, they’re a great medium! But of course, that’s totally between you and the pens.
Good to see these studies. I would recommend perhaps trying to get more detail into these ~ making more finished drawings. Perhaps even drawing larger than the original, or using a grid. It might really help you to better see problems in proportion. Also, I would recommend doing detailed drawings of various anatomical structures ~ in the same manner and style as your beautiful portrait drawings. I think that would help a lot.