I've just uploaded a photo pack to Ko-Fi;
https://ko-fi.com/s/69acba05a4
It's 100 macro photographs that you can use for desktop wallpaper. It's 'pay what you want' starting from zero! :D
I've also made a Ko-Fi goal for £70 which will allow me to buy an entry level flash for my camera, that I will use for taking even better macro photos 
