Very nice job! The characters are really cute and it fits the theme well :)
Two small points of feedback would be:
-Animate the water, just one extra frame can go a long way to make it look more like... well, water!
-Add some kind of visual feedback upon picking up items. A whole inventory may be overkill, but some kind of icon appearing for a few seconds could help for accessibility, or just people who play muted. It would particularly make the fishing game more satisfying. Because it is not explained how to beat the fishing minigame, one could assume they failed because either way no feedback is given.
Well done overall though guys!