The visuals are lovely, and the puzzles are fun to play!
In the 9×9 Grid puzzle, I thought I'd made the "S" correctly and spent quite a while looking for what door had opened. Eventually, I realized I'd placed the piece at the far right of the second row incorrectly. ^q^ Maybe it would help to have a text prompt or some other kind of indication when a puzzle is completed?
After the snail race, I activated a flag, but I couldn't get the first door in the other room to open. Maybe I wasn't stirring the soup correctly... I held down the mouse button and moved the cursor in circles over the soup, but nothing happened.
Overall, I really enjoyed this cute game!