These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The animation director was Vladimir Tytla, a former Disney animator best known for animating Chernobog on Fantasia. However, his crew was made up mostly of Warner Bros. animators, including Robert McKimson as sequence director.
Ear Worm: "I wish, I wish, I wish I was a fish..."
"He's the pride of the Navy and the salt of the sea, you can tell he's a hero all the way..."
Tear Jerker: Limpet and Bessie saying their goodbyes. Although it's obvious they'll be happier having gone their separate ways, it's still a pretty sad scene, and Bessie fighting back tears doesn't help.