I have already published 3 demo resource packs on itch.io fully created in RandTextureGen creator.

Links to them below:

https://dandruff.itch.io/snow-seamless-unrepetitive-textures

https://dandruff.itch.io/clay-seamless-textures

https://dandruff.itch.io/sand-seamless

Don't hesitate and create your own in RandTextureGen (link below):

https://dd-moe.github.io/xargiv/app.html

It's totally free and what is more you can use it even commercially.

If any problem with creator mail me at okl9212r@gmail.com or see tutorial:

https://dd-moe.github.io/xargiv/tutorial.html

P.S. copying image address from images in Google photos always works.