After spending time worrying how I was going to complete this project I spoke to someone who suggested a fantastic idea. Get different people to do the tree dressing, they will then take ownership of their tree and work out the design needed for their tree. So I have four different colours for four different trees(houses) with 3 additional knitters going to start work over the Christmas holidays. Then in the New Year I will present to another group to get them doing the thinking.
The missing tree may not be too much of a problem as there is a smaller alternative set a bit further back. I did mean to take a photo of the trees as a group but haven’t done this yet. Maybe tomorrow.