designer black sequin dress Gothic Evening Gown with Off-the-Shoulder Sleeves - Sequin Gown Colors:Lavender MUSERA Deep Plunge Cowl Do Not Tumble Dry colourway-cassidy

designer black sequin dress Gothic Evening Gown with Off-the-Shoulder Sleeves - Sequin Gown Colors:Lavender MUSERA Deep Plunge Cowl Do Not Tumble Dry colourway-cassidy

MUSERA Deep Plunge Cowl Neck Beaded Embroidered Fitted Maxi Dress Cute Summer Spring Going Out Occasion Embellished Elegant Graduation Long Dress | SHEIN USA

I eventally managed to track down a pattern for old fashioned wedding underwear - a boned corset top and a full "A-line" petticoat - the sort of thing you'd expect to see under a Victorian costume

colourway-cassidy

Colors:Lavender

This will allow you to visualize how you can put it together

Do Not Tumble Dry