Very interesting take on the theme. Hard to master, but also really fun. The presentation, visual and sound effects are really good. The level takes a bit of getting used to, but it has a lot of opportunity for the player to explore the mechanics. Also, let me say that your menus are probably around the best I've seen in this jam.
I think the money comes in at a slower pace than it should and the gnomes are a bit too fast. But maybe that's just me. And even if it's not, a little bit of balancing will solve that.
Congratulations! One of the most solid entries I've seen so far!