Hello Bauke!
10-20 drawings every day is a very ambitious goal. :) Is there any particular reason you went with this, and how much experience do you have with drawing already? Do you have a specific thing you want to improve first?
I concur with Line that I'd love to see some of the underlying construction. The outline is not a bad thing, but it can be hard to understand how the joints connect and bend if you're not focused on those things.
The gesture on the bottom left for example has a nice action line for the spine, but the left am doesn't have an obvious elbow joint and feels more like a noodle than an arm with motion. It would help your gestures a lot to use joint points, it allows you to do effective foreshortening and judge and create proportions better. Our article on joints might be helpful to you:
Gesture basics #3: Joints
You're absolutely on the right track and I'm eager to see your progress as you go along!