The mirror in your new home is too large for over your sideboard. Do you want to change out one for the other? I would recommend only installing mirrors in dining rooms at the head of the table

Most rooms this size would not have a sideboard and a china cabinet. Yours with the mirror at the back IMO is really too much mirror for the room. Your room could be so much more without all this reflection.

The current chandelier is a bit undersized for the room

Here is one way to configure the room.

How about entry way?

Sell it :)

We had one in our bathroom...and moved it to our family room downstairs in the basement...hung it lengthwise on a wall to the side of our bar area and it looks great. It gives the space the illusion of more room and depth, then we added rope lighting to give it more fun to the area

I think it would look squished there I am one of those that don’t usually like huge mirrors in DRs IMO most people do not want to watch themselves eat so I would remove the one that is there too but if not place a big piece of art across from it.

Definitely not the entry way. It'll be cramped and mess with those beautiful French doors