Mootsie Tootsies sling back dress shoes 8.5

Used once, very beautiful color and style. They are an 8.5 m. The left shoes has a black line on the inner part as seen in the picture. It might be able to be cleaned but I'm not going to do it in fear I'll make it worse. It's really not so bad especially since your shoes are on the ground and people hardly stare at anyone's feet.