I love the color system you used. It's very different and uses a lot of darker colors that I never use. It inspires me to maybe make something similar using my own color palette and adding darker things.
The way it looks it pretty basic because it's a circle with 8 noticably different parts. Almost every pizza I've seen is cut into 8 slices but I've never seen an entire palette within each slice.
When you did this were they all colored fully opaque or did you use transparency to get it like that? It looks as though it could be colored parts on top of a circle target made in grayscale.