Look at the webcomic copy of one punch man. ONE can’t be considered a Rembrandt, but he tells compelling stories in a world populated by interesting characters. OTOH, if your goal is to get as good as the manga edition of OPM, I’ve been reading comics for a while, and he’s a genuine talent. Most talents believe they’re still a work in progress. You’ll pick it up quickly, but thereafter will sort of plateau. Maybe 2-5 years from personal experience…? Good luck!