Now look at the painting guardians, they duel wield, so does Ciaran, they are extremely light on their feet, so is Ciaran, (this is only a small speculation) they also have similar "Pony tail" on their masks (Ciaran's is probably her actual hair).
Also look at the painting guardian sword, It's special moveset moves most gracefully, I get that same gracefulness from the Gold tracer as well, and not to mention the second r2 combo of both weapons are almost EXACTLY the same, 1h and 2h!
Now if you look at the PG sword crit rate, It is 100 unlike the Dark silver tracer which is 160, but keep in mind that the pg sword is not a dagger but a curved sword that resembles more of the Gold tracer rather than the dark silver tracer, I don't think it would be logical to compare the DST with the PGS. The DST is probably a unique/special weapon/gift given to Ciaran since she is one of Gwyn's 4 knights and a top assassin as a "trophy" or recognition of her position amond the ranks.
So what I'm wondering is if Ciaran could possibly be the Trainer/Head/master/etc of the Painting Guardians?(or maybe the Assassins in general)
Any other lore discussions about Ciaran are also welcome here!