This is a pretty neat concept and relaxing game, and the graphics are very nice! Always a big fan of hex grids. I do like the way the sprites change depending on whether they are correctly placed or not, but I think some of those changes could be more clear (escpecially beach and field).
I think I personally would prefer if there was a way to make slightly stricter puzzles, but that’s very taste-dependent. I know there are people (one of them sitting right next to me, for example) who like trying stuff until it something works, which is how the game currently works. It might be worth showing the number of swaps on the level solved screen to add an optional challenge for players who want it, but I’d advise against a star system as I’m not a big fan of those in general.
The elements you added seem pretty interesting, looking forward to see what can be done with them.
The music track is pretty neat, but gets a little repetitive after a while. Adding a couple more tracks might be nice.
As other people mentioned, the level transitions for later “worlds” don’t work probably yet.
The background waves and the bird that was flying around were very nice touches! I did think it was a little funny the bird flew below the tiles, though.
All in all, this seems like it could turn into a nice hypercasual puzzler, well done!