These ocs are named Constance and Marie (Marie is playing the piano, Constance is sitting on it)
Constance: she is a ghost who died in the year 1800, she was murdered (no space to write all the lore) and now haunts a mansion, she loves music and had a lovely singing voice, the mask she is wearing is Called a moretta, it was held in place with a button you would bite on which also prevented you from talking
Typically, women woukd remove this mask once they find their true love, Constance died wearing in and cannot remove it for that reason
Marie: she was born in 1880 and is currently 20 (Constance died at 21 btw) I dont have much story for her now, but she loves to play piano, this scene shows when Marie would sneak into this mansion and play piano while Constance watched in awe, the two often do duets (without Marie’s knowledge) with Constance humming along to whatever song Marie played, I have a few small moments about them in my mind but no full story yet, but I want to write a book about them over the holidays hopefully
(Also my dtiys are still on! They end on the 15th and these ocs can also be drawn (though I don’t have character sheets for them) just know Marie is a working lady from 1900 and Constance is a noble lady from 1800, so they can wear anything along those lines)