Glad to help! I hope I didn't seem too critical. I was just being nitpicky because there was really nothing major that stood out to me! It's really hard to make a demo for an idle/incremental-type game imo, because they tend to be long, and demos are short, so by nature it's not easy to get a full slice of the gameplay without totally rebalancing just for the demo (usually not worth it)-- and I think this did a good job of showing what makes it unique and gives it its strengths, which is more important! (And I know what I said, but please don't stress too much about the graphics. Few people play these types of games for that, and its stylization makes it lovely already!)
Replying again because I did have a quick question I just thought of while bored at work-- I followed you because I enjoyed your other game, the 'Legend of Idle' 2D one. Is it safe to assume this is a successor/newer iteration of that? Or is it going to be a mix of the two, like an 'overworld'/map in that style with its own resources and puzzles, and then different sections where you go into the 3D style world for more in-depth puzzles/areas/resources like this demo? I was just curious if that was your eventual or original intent, because they're both fun, similar (but different enough) ideas that seem to fit well together, and your last paragraph of your reply got me curious and thinking! Probably way off base, but I had to ask (mostly so I know to stop hoping for an eventual update/release of the Legend of Idle one) ;)
(Oh and I forgot to mention, if you're looking for feedback, you could consider putting your game on Galaxy if you haven't already! Some users can be a little too harsh/entitled sometimes imo, so don't take it too much to heart, but you often get a lot of thoughful feedback as well in my experience, especially if you ask for it!)