It feels to me like you see shadows fairly well (based on the last pose), but you’re focused on getting an outline when you start adding detail.
So I’d try two kind of opposite tactics. Try several practice sessions where you focus on continuous line drawing, and you try to push that into the longer poses. And try sessions where you focus on adding tone patches to lay in shadow shapes rather than adding an outline. This may work better if you are drawing through and over a form multiple times and kinda letting the off lines build the shadow.
I know when I was introduced to those ideas, i felt like they were in conflict, and like they conflicted with gestures. The more you just get comfortable with them and keep drawing the easier it is.
Also keep in mind if you’re just getting started with gesture it can be really hard to find the gestures in smaller muscles. So it’s kinda normal to feel very dead or like there’s nothing right to add to longer poses for a while. It’s a part of the learning process.