Looking good! You have a pretty free and expressive line going on there
But something you should focus a bit is line economy, keep your pencil on paper for longer, let it slide over the volume of what you're drawing It'll improve your clarity a ton
Plus, avoid doing squigly and crosshatched shading, try shade in parallel lines, it'll look a lot cleaner and less visually cluttered
Now, another tip would be to control your pressure, I'm not sure which pencil you're using, but practice your hand and arm muscles to be able to control and transition between differrent pressure levels smoothly
This is a great exercise to train your pressure control
well, I think that's more than enough for you to work on!