600 × 600
Source:https://seamsfriendly.com/collections/semi-formal-dresses
1000 × 680
Source:https://www.amazon.com/Wedding-Dresses-Mother-Chiffon-Evening/dp/B0BW3GMP8Y
768 × 768
Source:https://www.walmart.com/ip/Tunic-Dress-For-Women-Womens-Beach-Women-S-Dresses-Church-Modest-Formal-Black-Plus-Size-1920S-Gatsby-Accessories-Satin-Mini/1426550975
800 × 800
Source:https://www.dhgate.com/product/actual-short-women-cocktail-dresses-one-shoulder/721802353.html
627 × 1200
Source:https://www.theknot.com/content/what-to-wear-semi-formal
800 × 533
Source:https://www.okdresses.net/products/elegant-dark-green-lace-prom-dress-long-green-evening-dress-formal-women-dress
593 × 395
Source:https://www.pinterest.com/pin/35-formal-dresses-to-look-stunning-in-society19--741616263647137879/
640 × 555
Source:https://www.aliexpress.com/i/1005003905204371.html
768 × 768
Source:https://www.walmart.com/ip/adviicd-Black-Formal-Dresses-For-Women-Evening-Party-Sequins-Fashion-Sleeveless-Oblique-Collar-Women-s-Maxi-Dress-Bodycon-Dress-Party-Dress-Black-L/3479980240
1500 × 1000
Source:https://blog.petitedressing.com/formal-dress-curvy/