I'll never get over the brilliance of having the island's mountains be so weirdly tall and cylindrical just to reveal that they perfectly complete the cherry blossom tree imagery at the finale.
Chopper's a great addition to the team and I especially love how he inherited the late doctor's empathy along with the old lady doctor's medical expertise. Those two definitely had their unique faults, but Chopper got all the best parts of them both and is now pretty much the most ideal doctor you could ever ask for. Super kind + Super skilled + Super cute.
And to think, if they never took the route to Little Garden they'd never meet and recruit Chopper.