I like that you aren't too shy with using sharper, more animation style line work. This style is extremely useful for gestures to capture volume and indicate movement. I recommend leaning into that more.
It's okay to show volume with perpendicular lines but not totally necessary/does little to help how it reads. Instead break things down into shapes and show them.
I would stay far far away from using arrows to show movement. It's okay initally but don't let this become a habit because it will stunt your growth. Find other ways to indicate movement/direction OR be confident that your linework shows that.
Would be helpful if we knew how long you're spending on the gestures too. My advice is always to go faster.
Overall these look pretty solid! Keep up the good work and grind away.