Ginormous, mountains, frost giant. These High on Fire lyrics came to mind (from "Spewn From The Earth"):
And the Stable Diffusion model I've mostly used gave me this with that as a prompt, I don't see many cryogenic lines tbh but there seems to be some scourging with fire going on, so close enough.
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A big knob in the middle would probably ruin the image though, so not really suitable for actual pedal graphics.