Ok, this is actually amazing. The calm music, the great sound effects, the adorable visuals. I don’t know why but this really just made me smile. I enjoyed this a lot!!
The only thing that could be improved in my opinion is animation for the buttons, probably lowering the top half of the button by 1 pixel would already be enough.
Still I think this is an awesome, perfectly fits the theme, and definitely well executed!
Good job!