I don’t think OP intended to draw directly on Obsidian, but I’m with you on using a physical notebook to draw/paint. Some ideas need to be depicted, not written, and I use paper for that, as artists have done since forever ago. The downsides are the usual with physical notebooks: they aren’t so easily linked and the structure isn’t flexible.
I haven’t done it yet, but I intend to take low-res photos of those visual ideas (including sculpture sketches, now that I think of it) and bring them to Obsidian, where I can group, annotate, link to others or to written concepts, find relationships and, I hope, make sense of them all. Something like Zettelkasten might work. I just downloaded Tropy (thank you very much), but if Obsidian can handle a large enough amount of pics, it could be the way to go.
Of course this could work for visual inspiration you find online or photograph IRL, not just images you make.
It would be helpful if we had a thumbnail view for notes, but we don’t have that, do we? I’d also suggest the Extended Graph plugin, where you can assign images to nodes, but I haven’t tested it for that yet
This ia a cool thread, I’d like to know how artists are using Obsidian 