Well you need either that or the video’s idea. I think yours could be easier to implement and it requires fewer z-movements (and no reordering, can’t remember if the video did that)

So, some people mentioned already that itkinda looks like a marigold. But somehow no one mentioned that marigolds are annual plants. It is completely normal for them die when the summer is over. In theory they should do that after forming seeds, which yours doesn’t really look like it has done yet (or not yet complted). But if it was indoors or you live somewhere where the conditions for a fertilization aren’t right, it would still die without having formed seeds before.