I had several skeletons that I used in the past. I repurposed some of them into witches with the organic theme.
They’re around the cauldron with the heads of dolls about to go in.
I built the hut out of spare wood. The cauldron was an ice tub I bought. It was a lot cheaper than buying a cauldron you would get from the Halloween store.
I used can of Great Stuff to create a mold/sickly effect. The cauldron had lights on the bottom. Regarding the picture of the Witches outside, I routed a fog machine to it.
The rest was different objects I had around.