The two-tone black and grey might not look bad; the thing is, the Snakeskin Green is such a vivd color that you might want to go with a more subdued interior color combo. I agree that red would be a bit much, so would blue. That leaves tan and the grey or all black. The tan interior could look really good if the exterior green was more like a dark British racing green, but dark and subdued it ain't. So it seems you are left with the grey or all black.
Assuming a grey or all black interior, it seems you could go with either the graphite or light arc (i.e, silver) center bezel. I went with the graphite but I am getting a blue two-tone interior. If it was me, I would go with the silver to brighten the interior a bit.
Just my two cents.
/Rich