The number that jumped out at me was the price: 100 metres of pixels for just over £100, and those pixels are already scrolling horizontal rainbow and multi-coloured bands even though the build is only halfway there. That is a lot of animated tree for the money.
The structure looks well thought through. A central vertical metal pole sits on a base hub, ringed by a circular white pipe perimeter, and vertical strands of addressable RGB nodes run from a top cap down to that ring, held with black fasteners. The frame mixes PEX, metal conduit and PETG printed parts, and a megatree print was modified for the mounting. The connectors where the LEDs attach to the PEX were printed as well, and the maker followed the megatree guide for the pole and perimeter sizes. Each string stands 2m tall.
The electronics plan is tidy. There are 1280 12v seed pixels in total, arranged as two big segments of 640 with three power injections along each one. A domraem esp32 controller, described as a gledopto knock off, is fed by a 20a 12v PSU. Wagos split the power to the injection lines, homemade T junctions sit along the bottom, and three-pin wire bridges the bigger gaps there. Splitting the LEDs across two channels keeps each within the controller's 800 per channel limit. A small enclosure clamped to the lower pole carries the wiring, and a part at the top lets guide ropes be attached.
The open question is the weather. The tree is meant to live outside, and waterproofing rests on the joints and connectors being done correctly, which is not yet confirmed. Months of planning went in before any assembly, so I would expect that detail to get the same care.