Zara Bohemian Caftan Maxi Dress Beach Coverup size medium

Bohemian maxi dress from Zara in off-white and red that can be worn as a beach coverup as well floral pattern embroidered over pattern v-neck sleeveless rope detail on the shoulders that can be used to adjust the width 4-button closure I replaced the original wood buttons with vintage MOP buttons skirt is slit in front and on sides size medium about 18" pit to pit about 50" long in excellent used condition overall but has a few small, light stains in back near the waistband and also one very light on the chest, please see photos