1000 × 1000
Source:https://graphicriver.net/item/mens-long-sleeve-dress-shirt-mockup/24020062
800 × 800
Source:https://www.redkap.com/mens-long-sleeve-specialized-pocketless-polyester-work-shirt/SS16.html
1330 × 950
Source:https://bespokemoda.com/products/212237-mens-royal-button-up-long-sleeve-dress-shirt
974 × 730
Source:https://www.wrangler.com/shop/mens-long-sleeve-western-denim-shirt-T3WDS.html
1350 × 1350
Source:https://www.temu.com/mens-casual-long-sleeve-button-down-shirts-striped-dress-shirts-cotton-shirt-g-601099513093880.html
1000 × 1000
Source:https://www.amazon.com/HISDERN-Mens-Dress-Shirts-Long-Sleeve/dp/B0995CL5X6
3000 × 2000
Source:https://www.gentlemansguru.com/product/mens-royal-blue-paisley-shirt/
665 × 655
Source:https://www.pinterest.com/pin/178455203973748858/
1024 × 1024
Source:https://slipintosoft.com/products/mens-luxury-silk-dress-shirt-slim-fit-silk-casual-dance-party-long-sleeve-fitted-wrinkle-free-tuxedo-shirts
974 × 730
Source:https://www.wrangler.com/shop/mens-george-strait-long-sleeve-button-down-two-pocket-plaid-shirt-MGSPLB.html