1536 × 1024
Source:https://greenweddingshoes.com/black-tie-optional-wedding-attire-meaning/
1200 × 800
Source:https://www.erindavies.com/blog/decoding-the-dress-code
1500 × 998
Source:https://www.sparklesandshoes.com/2020/10/wedding-dress-code/
627 × 1200
Source:https://www.theknot.com/content/what-to-wear-formal-black-tie-optional-black-tie-invited
974 × 735
Source:https://www.pinterest.com/pin/55-black-tie-wedding-guest-dress-insights-you-have-to-see-this-winter--808748045605841446/
1440 × 2560
Source:https://www.gentlemansgazette.com/tuxedo-black-tie-guide/etiquette/black-tie-optional-dress-code/
1080 × 720
Source:https://jolynneshane.com/try-on-haul-black-tie-optional-dress.html
1600 × 1067
Source:https://livingaftermidnite.com/what-to-wear-to-a-black-tie-optional-wedding/
1600 × 1067
Source:https://www.brides.com/story/black-tie-wedding-guest-dress-code-long-gowns
640 × 640
Source:https://www.reddit.com/r/Weddingattireapproval/comments/164uvyu/which_dress_works_best_for_a_formalblack_tie/