This is amazing work! I just got into this pose and found that I kind of wanted to roll my shoulders back and stack my head over my pelvis just to be able to balance. If she's cutting through something and applying pressure on the sword then it makes sense for her shoulders to be rolled over but if not maybe try them less hunched and lowered/back?

Hey Giulio, I like your redesign, and the drawing is nice. My biggest feedback is that she looks like she is sleeping. The pose is very up and down and straight which makes it kind of stiff. I did a quick sketch to show you how you could add some dynamic elements to the pose. I hope this helps :)

They both look really good! I would say the way you used thick dark lines in the first image sould be more focused around certain areas you want to draw attention to. Those heavy lines remind me of how product designers manage to instandly draw the eye to details. Overall i guess my attention is just "jumping" between details instead of "searching" for new ones. I dont know if that explains what i mean... AS of the second painting id have to see your reference to critique anatomy.