ya thats good idea, thanks. Anyway, should i add table runner (the peach color in the middle) or i just keep it white only ? The centerpiece is cluster type (3 diffrent size of squere vase) with white lily, white dendro and peach white rose. The bunquet chairs are white with peach sash

Try wood and glass. Consider hanging the mirror vertically and about 5" from the sideboard top. You could also move the table under the light fixture, change it out for a chandelier, and put the sideboard and mirror on the clock wall where the mirror could double the chandy which should hang 36" or less above the table top.

You can of course have a furniture repair business add material and refinish. Or you can add a center accent piece of tile, or wood inlay. If you're going from a narrow rectangle to a square, you would need to disassemble the table anyway, might as well do something fun with it.

Wax is good on a dining table as easy to apply a bit more in the event of cup rings etc.