1350 × 1080
Source:https://www.aliexpress.com/i/1005005192791171.html
1280 × 1280
Source:https://greenweddingshoes.com/semi-formal-wedding-attire/
990 × 792
Source:https://www.popsugar.com/fashion/best-formal-wedding-guest-black-tie-dresses-48805644
1400 × 933
Source:https://www.brides.com/story/wedding-dress-code-explained
1200 × 900
Source:https://au.ever-pretty.com/collections/formal-wedding-guest-dresses
1199 × 800
Source:https://www.dhgate.com/product/elegant-long-sleeves-a-line-wedding-dresses/875165983.html
960 × 768
Source:https://colorandchic.com/wedding-dress-code-guide/
620 × 640
Source:https://www.aliexpress.com/i/1005003096966323.html
2247 × 1500
Source:https://anindigoday.com/formal-wedding-guest-attire/
1612 × 1200
Source:https://www.marthastewart.com/7961601/tips-bridesmaid-dresses-formality-compared-wedding-dress