Furniture looks fine to me. But TV is way too high. Get longer entertainment console for under the TV and put the TV on it at eye level sitting down. As for the fireplace, the mantle is too high also. I would either take it down all together or put the mantle under the heat ducts. Corbels would have to be removed since it looks like they are permanent with the brick. Mirror over love seat is a little big also but does reflect some light. I think a colorful rug with throw pillows the color of something in the rug would looks good. With little ones, your furniture looks easy to keep clean and with a colorful rug your room will zoom!