@nina_kali_nina second, I noticed you are fond of the outline. In observational drawing, it is a good exercise to try to avoid drawing any outlines beyond light contour lines used for planning out sketches. This will look more naturalistic, because real life does not have outlines.
@nina_kali_nina ok done with dinner, I have more thoughts on your post, maybe you will find some of them useful.
Some technical advice for pushing your drawing further:
I recommend experimenting with charcoal and conte chalk when you sketch. You'll be able to do more subtle gradients and more striking dynamic range, and a pink pearl eraser or a kneaded rubber eraser will lift it back up just fine if you don't like a mark, just like pencil.
(e sì, abituata alle “istruzioni” burda, quando ho comprato dei cartamodelli artigianali con decine di pagine di istruzioni è stato uno shock culturale)
@riley I want drones that have a fishing net on a pole and catch drones like they're butterflies. Possibly while blasting the Benny Hill chase music while they approach. @oblomov