Thank you so much everyone!
Trex - It is both inside and out. I used my garage and front yard. Ideally it would all be inside, but you can only do so much with a one-car garage, haha.
nightmarefamily - both the Lady in Black and bride (Venetian Victoria) were Grandin Road purchases.
Bethene - I did make the spider. I modeled it off of one I saw at HomeGoods, then used styrofoam, wire and a bunch of black fabric. He's held up surprisingly well.
Love being a part of this community. <3