Thank you so much for including an arrow pointing towards the nearest gnome! I've seen so many diving or sea exploration games where the premise is similar but there's absolutely no guidance towards the goal, so you're just searching for a needle in a haystack.
On top of that, the style is great, and the later two gnomes were much harder to get than I was anticipating (which is good, I was worried it was going to be too easy). The only thing I'd say this game lacks is more content. The concept is solid, so it would be great if it were longer with more obstacles and minigames. Also, this is a minor issue, but I think the camera should refocus on the pier when surfacing instead of staying in place, since the first time I surfaced and there was no visual change I was worried the game crashed.
And I'm actually rather interested in the lore behind gnomes somehow getting lost at sea while escaping a garden.