My mom used to have these Halloween-inspired window clings that she let me bust out every October. Stickers of ghosts, witches, pumpkins - I think one of them said Happy Halloween? Probably? Every October she'd pull them out of her "Holiday Decorations" bin and let me stick them onto the glass door leading out to the deck. I loved it. This - aside from the in-school Halloween parties where the teachers handed out candy and we got to play games all afternoon - was my favorite part of Halloween.
I told my mom I wanted to start hanging them in the giant full-story window in the front of the house. "There's more space," I said. "It's going to look so pretty!" I said. And I'm pretty sure if I'd had a more pronounced vocabulary at that age, I would have said, "It's going to be so festive! It's FALL! Let's decorate for FALL!!!!"
So, for the record, that is who you're taking advice from. Someone whose Fall decor once consisted of the desire to stick glass cling-ons of witches and pumpkins to the front of her house. Because she thought they were, like, "so pretty".