After reading all about the fabric boutiques one could conclude that this was one such dress, but given that it was extremely well made, I highly doubt it was a make it yourself dress and that it was indeed a YSL couture piece or it was made for a customer by a high end dressmaker following the YSL pattern, using the YSL fabric

Real Weddings / This Warm Garden Wedding Was a Modern Fairytale at Clark Gardens in Weatherford, Texas More Photos From This Album Bride Holds Autumnal Cascading Bouquet Featuring Blush, Wine, Pale Pink and Coral Flowers With Greenery Custom Signature Cocktail Menu Featuring Drawings of Couple's Pet Dogs Modern Three-Tier Geometric Wedding Cake, Champagne and Cream Colors Modern Geometric Invitation Design, Pinks, Green, Brown, Fall Wedding Place Setting on Table With Blue Linen, Chargers in Different Shades of Blue, Gold Details, Geometric Name Card Bride Putting on Blue Drop Earrings at Garden Wedding White Tile Escort Cards on Deep Blue Escort Card Display at a Fall Wedding Reception Bride and Groom Pose Under Burgundy Floral Ceremony Arch With Matching Bouquet, Fall Wedding Tented Reception Space With Round Tables Featuring Geometric Details, Blue and Gold, Candles, Low Centerpieces Whimsical Botanical Garden, Meadow Ceremony Space for Fall Wedding With Dark Colored Flowers

Is there a specific hat, bag, piece of jewelry, or even a prop that's crucial to your character
Plus, just like their dresses, everything is super affordable, so you can gift great without breaking the bank
This doesn't make their gender any less valid than anyone else's