I remodeled the original model completely so each part can be printed separately which then are assembled and then glued together.

Also the measurements are slightly different than the original since I created my own files based off of the look from the original creator.

You need an AMS-unit for the inner ring and for the jelly fish.

The inner ring has an automatic pause at the start of layer 34 when the flowers are starting so you can insert 4 different colors into the AMS and then continue the print.

The jelly fish is also printed separately so a second AMS-unit is not needed.

The inner ring now has a hole in the back to be able to hang the window up.

Both rings have a small marker on the back to assure the rings are alligned.

There's a second print profile where the inner ring is printed without an AMS and where it has marks for the flowers which are printed completely separately.

I set the flowers to be printed by part and not by layer with the AMS to save material and time. You can add pauses to completely print without AMS if you need to.