Yes, it's almost certainly tiny Robert. He ends his sentences in the same way that KoF Robert does in the original JP (with や, a Kansai dialect).
I see Goenitz, Yuki and Kula, but I have no idea who the rest are.
Sorry for the delay, I was playing the 2002UM and Guilty Gear rollback betas since they were released lol.
Yuri's winpose is taken from '96 / '97:
https://twitter.com/oz_shiron/status/1272876777522618368
The moves are mostly obvious references.
https://imgur.com/MhdhTmn...
Anyone wondering, it's officially nor Krizalid, it just looks a bit like him. This dude is a random jobber.
https://twitter.com/aokimasahiko/status/1218733231198990337
I did the last handful of these myself, but stopped when an official translation was announced.
I hope the quality was alright, it's the first time I've tried translating manga.
Hopefully the official release won't take too long.