I recall seeing a PC demo - meaning an executable program demonstrating various graphics and sound effects - in mid-2000s (does this count as sufficiently retro?) that featured animations of the four seasons. The animations were like a tree is blossoming in the spring, then the tree has green leaves in the summer, then the leaves become yellow and torn away by the wind in the autumn. Also, dandelions flying above green grass in the summer etc.
The animations were accompanied with well-written wordings describing the "feeling" of each of the seasons that appeared on the screen phrase after phrase.
Would greatly appreciate if anyone could refresh my memory on the name of this demoscene production. I vaguely remember it was a 64K intro, but not 100% sure about that.