That looks good if one is in the monochromatic mood. I have a greys based snakeskin tolex that would balance equally. Let me toss this here as well, texturing techniques for metal, https://www.interweave.com/article/jewelry/helens-7-favorite-ways-to-texture-metal/ The pattern scratching method remind me a little of Gigolette guitars tops, another idea in itself. You could also just contact cement on a textured material onto the metal and clear over if needed. Something contrasting to tolex.