This is a design by Chris Palmer. Jeremy Shafer posted a tutorial of this model on Youtube with the teacher being Chris Palmer himself.
Do you experience situations where you do not have the required size of paper for a model so you just have to be content about using a smaller sheet and therefore having a smaller-than-normal product? That is what I felt...The model really consumes paper when it comes to size and I only have a square piece at least 8.5 inches on each side. I really needed the metal stick mail opener I bought from S. Korea to finish the top layer.
The usual Flower Tower starts from a dodecahedron base (the paper can still be square) but there are other versions, with models folded from octagon-based folds, and even hexagon and pentagon bases.
What stands out with this model is that it has different firework-like layers than can jut out and flatten when folded correctly. It is not an easy model, though. The squishing of the cylinder-like structure midway through the process can also be difficult unless the folds were done accurately or properly.
Happy New Year!