vaneli gold slingback

size 8 1/2M fair used condition, the outside is in good condition, on the right shoe, a stain near the tip (see photo), on the left shoe, 3 different tiny gold stains (see photos) not noticeable when worn. here comes the bad & the ugly: both insoles of shoes have scratches & marks on them (don’t know how that could have happened - see photos), the inner linings on both vamps & insoles by the toe areas have disintegrated (see photos). it’s not mold, i checked.