Those are some fantastic characters!
The evolution of Mara is particularly interesting. The background of the character merged so seamlessly with the new story. Aristocrat Hat looks pretty good with Briar Armor. I don't think I ever wore this hat even though it drops in every second playthrough.
If you want to disrespect the Bell Bearing Hunter, you can yeet the Bell Bearing Hunter in Caelid off the cliff like so. But since you made this character for parrying (and are still playing on it?), this can be a pretty high-octane parrying fight; one miss and you're dead.
Did you switch through all Crucible weapons with Cambrius, or did you use mostly the Ordovis's Greatsword? The weapon arts of the Crucible weapons are so busted.
Gloam-Eye is inspired! I love the last scene in the Frenzied Flame ending, and you nailed Melina's look. What did you write in the messages at these fitting places? Is the name Gloam-Eye an allusion to the Gloam-Eyed Queen or just about her eye?
I really should make up more of a background for my characters and/or make themed playthroughs. I usually just pick from one of my templates, change it a bit for 30 seconds, and then start playing.