A designer tip to help ensure you are happy with the size of your wall art selection is to outline the outer dimensions with painters tape on the mounting area to determine if the dimensions are visually suitable. When mounting wall art, the bottom of the frame should typically be about 6 to 12 inches above the top of of your sofa or console. For mounting above a fireplace, select a width that is larger than your fireplace opening but smaller than the width of your mantel. Bold palm leaf motif. Hand-applied gold leaf highlight. Triptych.