Probably due to the overall design of Buster's face with the the giant eyes, giant crest, and chiseled chin/jaw:
https://vignette.wikia.nocookie.net/...20200812220018

Obviously they're not an exact 1:1 with Geed's, but the elements are definitely there.

Ah yes the Buster-type sword made famous by Japanese Role Playing Games.

https://animechicago.com/wp-content/...oud-strife.jpg

https://natalie.mu/eiga/news/393199

They say Hiroyuki Hirayama, the man with the crew cut and facial hair, will play the former fencer of flame who appears in Touma/Saber's dreams. Also member of performance duo Les Romanesques and Preying Mantis monster of France Five TOBI will play a character named Tussell who is described as the "storyteller".

WAIT!! You mean France Five as in this France Five?!
https://affotd.files.wordpress.com/2...pg?w=530&h=314

Yep. That's what they said. :lolol

Weird. Cool!! But weird.

Kamen Rider Buster is the best design out of this show for me yet, mainly for the reason that he looks like he doesn't belong in it.

Cool mechanical suit, lack of the bookshelf belt and a big ol' sword on the back. A "Buster Sword" one might say.

Whenever I see Buster's design I immediately think "Kamen Rider Belial".

What are your bets on KR Calibur's true identity?

We better get a female rider or two in the mix!

If female Riders are appeared in this series, I think the Female Riders designs will be based on The Little Red Ridding Hood and Alice in the Wonderland.