This game is super cute!
I like the core ideas here, and I think this could lead to a really compelling gameplay loop. I especially like the idea of buying land to expand your little island and reaching other little islands to find more upgrades and things to buy... It reminds me of old minecraft skyblock maps a little bit. It's very compelling!
I don't think I have a whole lot to add that the other feedbackers didn't already mention, but I'd be excited to see how this game grows and expands. I think that there are really good bones here and the game could be really fun if there was more to work towards. Good stuff!
I played it here on stream around 23:30