This service allows you to receive a random picture. Simply insert the image on the page
<img src="https://images.nikitakiselev.ru/random" alt="Random image">
https://images.nikitakiselev.ru/random - Get a random original size image
https://images.nikitakiselev.ru/random/400 - Get a random image with width 400px
https://images.nikitakiselev.ru/random/300/200 - Get a random image resized to 300x200
You can download some images to project folder for demo purposes. Just using this script.
php -r "$(curl -fsSL https://gist.githubusercontent.com/nikitakiselev/c86c56ce39c7eb9ec3c5eba54f24fd76/raw") 20
Scripts will download 20 images to the current folder.