I'm not a fan of this shader in-game, but the app makes it look respectable. Jovian Gauntlets might help, but the ones you have right now aren't bad at all. FWC Mark doesn't look like it clashes that much, though it might in-game. An alternative Mark might be in order. But from memory, I'd say the FWC is probably one of few that would match. Honor of the Cormorant might work, too. There's the red-yellow one, I think it's something about the Freehold of Mars. But I do think you should stick with that mark. Factions Represent!

How about this one?

I forgot about Deep Stone Crypt. It's spot on. Matches the color scheme better while adding a little bit of its own color. It's even better than FWC because it doesn't clash with the fancy decor of Lupi like the FWC's jagged lines and illuminated gfx do.