I love the trail map animation, and the pie shop is wonderful. I think the choice of owner and payment method is very clever. It's an excellent method of adding balanced perks to the game.
I also realized that I've never properly looked at the sticker album? I just bought a postcard(?) from the machine, and somehow found my way back to the sticker book. I accidentally moused over the umbrella beaver...and it changed color?!...so I went through the other stickers.
The water effects reminded me of those squishy liquid-filled stickers I had as a kid. And I still have my beloved lenticular bookmarks, so I audibly gasped when I saw a sticker do the same thing!
And then I found a way to turn off the lights. That. was. amazing.
Maybe they're already in the game, but it'd be super cool to have some puffy stickers for birds that would squeak bird calls when I pick them up. I don't think irl puffy stickers make noise, but they look like they should, you know?
I already thought this game was great when I'd only half-played it, apparently - now it's even more fun :)