This is a really relaxing game with a really nice art, however, I have some suggestions:
- Replacing isometric with top-down view
- Adding a new mechanic because spamming left click gets boring after some time.
- Adding new mechanics in new levels to avoid repetitive gameplay
- Using more tiles and none square canvas
- Choosing a better font
These are the only problems I can think of. Sorry if that soundes rude or aggressive. I hope I see more relaxing and beatiful games like this from you with upgraded gameplay to make it perfect!