Hey! nice progress man. Honestly, the best advice is to keep practicing more and more.

The fact that there's already progress between your tries 1 and 2 means you have a critical eye for your own work and have been able to make corrections.

That being the case, one piece of advice that has helped me a lot on regards to proportions and structure, as simple as it sounds, is to flip the image horizontally as you work on it.

I know there's a lenghty explanation for what it does, but basically, it allows your eye to view the same art piece with a "fresh perspective". Kinda like tricking your brain into thinking it's looking at a different piece of work. This allows you to quickly identify misproportions to correct them.

Try to setup a shotcut for this flip action (or just look up what the shortcut is), and do it frequently as you work on your next first try.

Once the image looks well proportioned flipped back and forth, then you know you got it right!

Keep practicing and going through the terms. I'm barely on term 2 myself and already there's a lot more to learn on regards to human proprotions and perspective!

Nice work, just keep at it, keep iterating and analyzing what can be improved then try applying what you learned you will improve fast that way!

Do try to minimize fuzzy lines as they are hard to read, in its place, try analyzing first, measuring a bit maybe ghosting the stroke (like flying over the canvas) before hitting the canvas and placing your mark. Doesn’t have to be fast from the get go, I can tell ya my gestures were a struggle the first few times so I stopped doing them fast and just eased into it by being a little more analytical and giving myself a little more time to think - of course that meant some of my gestures were incomplete and I had to move on, but you learn from it and gradually improve

In gestures its best (according to various artists) to summarize all the action in what seem like C S and straight marks. Line weight can also help convey the feeling of movement using marks that taper at both ends and are heavier at the middle

Ofcourse all of this advice is just my opinion. - a beginner’s opinion still and there is definitely no real right or wrong eay to do any of this
Cheers!

Nice! You can definitely feel the flow on these. I think a few straight lines and sharper corners at the knees for example, would add more dynamism

Cheers!