Glamorous Tulle & Satin Sweetheart Neckline Mermaid Evening Dress With Beaded Lace Appliques

Dear customer's service,I want to order this dress with the same color! But I' ve Inquiries about!* which color should I choose to have the same dress as in the pic.* im going to order it via the app but how  can i add  a notification to my order about  size and measurements