Hey there mate, snakker here, local 2-yr old noob. Just landed upon your thread. I like how you took brohawks advice on line weight, it works really well with your character lineart
As for your gestures, its a bit if a feel and aesthetic thing for me. A chance to practice an exercise that forces my brain to try to simplify a complex thing into three simple lines (C curves, S curves and straight lines) but i totally suck at doing it quick, i tend to take my time honestly and now force myself to do the fast ones to see what i get outta it
I feel one key thing here is you are tending to use symmetric and chill c curves (they end up looking static and Michelin like) in stead force some asymmetry into the design. A straight line adds structure and strength, an angle at the elbow too, then you add a curve with an offset apex (like a triceps contour) or an exaggerated C curve to show the force of a bending knee or a bending back etc
All about that aesthetic look and feeling of the forces.
Cheers and keep at it, your medieval styled characters and comics looks promising
