Thanks, everyone, for the suggestions. I thought about it and I *think( I came up with a creative solution that I am happy with for now. I think it still needs to be tweaked a bit, though.
I wanted the fireplace in the same spot of the keep as Larisa's. I was pretty set on keeping my gilded wooden chest in the dining room. So I tried to create the look of hanging plants above the chest. Here is the result:
I know the flowers look like they are hanging behind the chest rather than above, but oh well. My chimney is covered up.