If you really want, then of course you can combine lamps of different colors in one room. But we advise you to still use one color scheme in the room :)

Basically a frame, seems to go with the simple style of pendants. Have you considered something with more 'fill' to it? I ask because idk what the room measures. I like that one though. This 'throws' some crystals in for dressy - too small -

https://www.wayfair.com/lighting/pdp/rappaport-4-light-globe-chandelier-with-crystal-accents-w007880894.html?piid=1682229783

40 is large, but I like the softly distressed finish, for modern farmhouse. Dimmable. In front view of brick... a large round might 'show' nicely.

https://www.wayfair.com/lighting/pdp/rappaport-4-light-globe-chandelier-with-crystal-accents-w007880894.html?piid=1682229783

Not a fan, because of the stout fireplace you need something that matches I think the thin lines of the fixture will get lost. Ps have you ever thought of just removing that mantel? looks like it was not always there. maybe a little wood or beading, round.

These are great ideas! The round makes much more sense. Thank you all!