I have a design quandary for those of you that love to decorate. Our family room has a fireplace with a wall above that has been sitting empty since we moved in several years ago. We knew we wanted a painting for the space and didn’t want to spend anything until we found something we loved. We’ve found an artist and now need to decide on the size of the piece. The wall measures 109” x 74”. We’re planning for a 4” frame on the painting. We think 76” x 36” will fill the space nicely. Any thoughts on sizing? The ceiling is slanted and goes quite a bit higher but we’ve measured the wall from the mantle to where the slant starts. TIA