This is a great share and I am very happy I could contribute to the inspiration for this! It always takes guts to show something like this. There's also something to be said about the elegant simplicity of a pencil.

All the basics are here! Faces, Hands, Mannequins, Flora, Objects, Machines and Landscapes. Now do them each a 100 times and you'll be a pro! But in all seriousness, it shows that you gained some enjoyment for and from this :)

I think the "industrial" drawings are the most promising! Life drawing is like vocabulary...practice and learning it by heart.

Also consider adding the #artbees tag for future art posts!
You may summon some very cool and supportive people like that ^_