This is my second contribution to the Autumn challenge (not a contest and no prizes, it's just for fun and learning). It belongs in the Colour category. [link]
Two gradients were made from this picture which ~P3dy asked us to use specifically for this exercise...
Gradient I made from that image is , and for this image I used just the colours from the left-hand of the screen shot.
This is a multi-layered fractal created 100% in Ultra Fractal as part of my Ultra Fractal Floral series [link]