I can think of a couple that I really like, the Horn Top Hop level in DKC Freeze is one
The Golden Grove in Ni No Kuni is fall-themed and its absolutely gorgeous
And then theres the fall season in TLOU and in games like Stardew Valley, Harvest Moon. Theres a fall-themed route in Pokemon White/Black 2 that has a pretty soundtrack. And of course, the Akkala region in BOTW. Absolutely gorgeous as well.