Hey there!
Your gestures look pretty decent! How long have you been drawing?
If you want to do animation, understanding anatomy is absolutely important. Your gestures show that there are still some underlying issues with your ability to put together the different body parts and how to angle them correctly.
You may want to start by simplifying your gestures into more basic lines to capture motion and get proportions down first before you work out a sketch more. One of our members has some good visual examples of how to get basic form and motion down into a few simple pencil strokes, I highly recommend their thread:
https://line-of-action.com/forums/topic/my-daily-gesture-drawings/