Hello! :) I am marely a student myself and I'm not nearly as far into my art journey as yourself. BUT I am online a lot and consume a lot of art from a lot of artist and to me you look way more than ready. It's almost unbelievable that you got this good in only 3,5 years and it was a hobby no less. I'd say start going to cons or other events (digital and physical) and have your portfolio looked at. I don't know what job you want to apply for but maybe look at the studio's websites in the field your interested in and see if you can apply there as well
Here are submissions for the assignment. I do it digitally because I feel I must up my line confidence digitaly. But I make it a point to never control+z or to erase. I also don't have any pen pressure. I want to treat it like it was ink and not hide my mistakes.
Question: What schools did the different artists go to, and what did they think of their time there? :)