If you loved Glassy Ocean, try One Piece: Defeat the Pirate Ganzack!
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the playful mood tag, and they sit in Animation / Fantasy territory. If that's the register that drew you to Glassy Ocean, the second film will land in a comparable space — through a different lens.
playful
What One Piece: Defeat the Pirate Ganzack! is
Here's an anime short that's not short on exclamation points. Luffy and Zoro land on an island and team up with a local girl to rescue Nami and other villagers from the pirate Ganzack. It's a perfectly serviceable way to spend half an hour.

