720 × 1280
Source:https://www.gentlemansgazette.com/the-formality-scale-how/
1081 × 720
Source:https://www.today.com/shop/semi-formal-wedding-attire-t281788
3648 × 4840
Source:https://www.leaf.tv/articles/what-is-a-formal-dress-code/
627 × 1200
Source:https://www.theknot.com/content/cocktail-wedding-attire
494 × 600
Source:https://www.theweddingcommunity.com/tips/groomswear-tips/what-is-formal-wear/
600 × 750
Source:https://www.nordstrom.com/browse/content/blog/what-is-cocktail-attire
1104 × 736
Source:https://www.pinterest.com/pin/belle-mesh-sheer-dress--756604806153698432/
3377 × 5066
Source:https://emilypost.com/advice/attire-guide-dress-codes-from-casual-to-white-tie
934 × 700
Source:https://www.whowhatwear.com/semi-formal-attire-for-women
900 × 1200
Source:https://www.wikihow.com/Cover-Cleavage-in-a-Formal-Dress