On the outer rings polished andesit...

On the outer rings polished andesite and polished deepslate. As the outer rings meet the middle all purple blocks should be crying obsidian and all bright purple blocks should be pearlescent froglight and amethyst block. All orange bits towards the bottom should be a mix of glowstone magma and copper block. keep the outer rings flat (ignore the decorations on the outer rings) Towards the bottom make it darker by adding more deepslate and smooth basalt.