I don't remember a requirement that ribbons go under the surface in the Pelt Sub. I only remember it being a question of what the base glass looks like when backlit. [Edit: with the base looking mostly solid in natural light and going almost transparent when backlit]
I have a different issue with the marble. I'm not 100% sure it's Pelt. The pattern looks more Marble King. I'm probably off base with that. I'm not aware of this color combo in Marble King. I'm just getting hung up on low ribbon count and the patch on the end.
So, my answer is "maybe" [Edit: but probably not]