768 × 768
Source:https://www.walmart.com/ip/TOWED22-Womens-Flat-Shoes-Women-s-Flats-Shoes-Dress-Shoes-Round-Toe-Ballet-Flats-Comfortable-Crochet-Lace-Flats-Low-Heel-Beige/3581653133
900 × 900
Source:https://www.amazon.com/FRACORA-Breathable-Leather-Loafers-Walking/dp/B08SK8S72C
1000 × 1500
Source:https://people.com/style/best-work-flats/
900 × 607
Source:https://www.amazon.com/Shupua-Dressy-Ballet-Comfortable-Ballerina/dp/B0C6JN8WJS
1600 × 1600
Source:https://www.walmart.com/ip/Women-Shoes-Point-Toe-Ballet-Flats-For-Women-Flat-Shoes-Slip-On-Shallow-Mouth-Simple-Single-Shoes-Casual-Shoes-Work-Shoes-Black-7-5/1438017180
400 × 400
Source:https://www.target.com/p/women-39-s-corinna-wide-width-ballet-flats-a-new-day-8482-black-9w/-/A-79443019
1500 × 1500
Source:https://orthoticshop.com/vionic-desiree-womens-quilted-flat-supportive-dress-shoe.html
800 × 800
Source:https://www.temu.com/womens-solid-color-flat-shoes-elegant-point-toe-dress-shoes-lightweight-slip-on-shoes-g-601099523395792.html
768 × 768
Source:https://www.walmart.com/ip/TOWED22-Womens-Flats-Women-s-Flats-Shoes-Comfortable-Memory-Foam-Dress-Shoes-Slip-On-Ballet-Flats-Low-Wedge-Work-Shoes-Brown/3953357590
630 × 1200
Source:https://www.today.com/shop/best-work-flats-women-t225373