Very cool! I’ve tried to draw (poorly) while using my medium nibbed Lammy before and it seemed way too heavy for the level of detail you achieved here, so I thought you might be using something pretty fine.
I got the extra-fine Kaweco! They’re relatively inexpensive, and the ink flow can be a little dicy sometimes, but I think it helps it be more expressive. My bigger one is a TWSBI, which are so thick. Much more difficult to work this fine with that one, but it’s a good one, too.
Sick, super cool. I’ve been goofing around dip pens lately, just a classic g nib. It’s way beyond my skill level, but I’m starting to dig how much variation you can get. I’ll have to try out the kaweco sometime though, I see them relatively often in stores