Original/authentic/fabulous leaded glass windows and they are so gorgeous! I would not do anything to cover them, but if you want some fabric for color/texture I would run a rod across the soffit and hang panels to frame the bay.

Steam heat radiators…my first house… Do not let anyone talk you into replacing them. The best heat ever because when the rooms reach the set temperature and the furnace shuts down, those radiators keep warming the room. The additional plus, as you know, is the steam keeps the air moist.

I would love to see more pictures. I hope you have a dilemma in another room, so we can see more of your fabulous house.

i love them as is too. I wouldn't dare cover that beautiful trim work or the leaded glass.

you could try an inset blind, but I don't know if you have the room for that type. anything on an outside mount will hide the upper part of your trim.

I certainly wouldn't do drapes for the same reason.

Do you need for privacy? If not, I would do a curtain on lower half of two outer windows and nothing on the middle. Also, could do an inside mount, top down, bottom up shade for outer windows. I wouldn't want to cover the trim.