Great space! Way to go, mixing the vintage. Is the table antique or a good repro painted?

I think you should stay Empire, but also do crystals. This is a good look for under $500.00

[https://www.houzz.com/products/french-empire-8-light-antique-bronze-finish-clear-crystal-basket-chandelier-prvw-vr~62560484[(https://www.houzz.com/products/french-empire-8-light-antique-bronze-finish-clear-crystal-basket-chandelier-prvw-vr~62560484)

I think the dining table would look better if you removed a leaf when it's not being used. More opaque draperies with a color pulled from the area rug would frame the windows better and more contrast on the chandelier would complement the fireplace.

Here are a few designs of ours with chandelier ideas that might help: