With this task, I had quite a few troubles and things not working the way I wanted them to so I tried my best to showcase my idea.
My original idea was to have different sized circles overlapping each other and having the opacity so you can see every circle thats being overlapped. I also wanted each design to have its own colour and the circles have different shades and tones. That way it was easy to tell that each design is 100% different from each one every time it generated a new design and none of them look slighty different from the other.
I couldn't work out how to have the circles overlapping each other and opacity changing without it messing up the whole code so, for now, I decided to stick with just the solid transparency with the circles and maybe in the future I will play about further and be more experimental.