Time for the second part of our LEGO® Ideas 21318 Treehouse review, looking at the build. We covered its elements in part 1.
In a great alteration to Kevin Freeser's original fan submission, which had a grey square base, César Soares' official version has an irregular green shape with a stream running through it. The stream is Dark Azure plate (including the 4x8, Element ID 6209672, its third appearance in sets) with a layer of Transparent 1x1 and 1x2 plates on top.