Telling someone to learn anatomy is not bad critique, it's -common- critique.
There is no structure to the bodies, there is a lack of symmetry, there is no consistency between bodies, there is no understanding of three dimensional space. There is no fluidity to movement, the characters are stiff, often appearing to be floating in a void because there are no established environment shots.
When someone suggests the 'basics of anatomy', that is a literal term in art education. The basics. There are dozens upon dozens of free courses online that literally go over the basics.
https://www.youtube.com/results?search_query=proko+anatomy+basics
More on point to topic:
It doesn't matter how stylized something is, if you don't know anatomy it will show in your work. So regardless how many ideas get thrown out there, the lack of understanding of anatomy is going to be a problem. I'm not trying to come off mean or anything like that, but if we don't understand what we need to fix then it's never going to be fixed and you end up stuck in the same cycle for years. Which it seems is the case here.
Learning anatomy, learning motion/gesture, learning how light and shadow work, all of these things are part of the basics and they take a very long time and a lot of work to master. It's something you can't do alone and without some form of resource to learn from (like the various youtube videos above).
I would like for everyone here to succeed. We cannot succeed if we are not honestly told what is wrong and what needs to be fixed.