Here are a list of SFW wallpapers that I have been collecting over the past 2-3 years. They will always be high resolution and SFW wallpapers.
As soon as you enter the key, the folder structure will download along with their corresponding images.
If you want to ignore a certain resolution you can open the .SyncIgnore and place any of the folder names you wish to not download. You will need to
1) Close Resilio Sync
2) Edit the file
3) Delete the folder that you want to ignore
- if Resilio Sync has downloaded it
4) Then start Resilio Sync.
If the folder that you ignored reappears, you may have put it in wrong. Make sure you don't have any following slashes.
Current folder structure: