Indoor & Outdoor Fireplaces, Plus Accessories

I would like help decorating our fireplace mantle. It’s white and our walls are a warm brown.?

I only have a painting by a New Orleans artist in the center. It’s mainly red and yellow. The tiles around the fireplace are small and kind of a turquoise green. It’s in a dining room as you enter our historic home.
I would appreciate any suggestions.

black wrought iron candlesticks would look great. same style as the balcony railings in the French Quarter.