Update (August 15, 2015): All wallpapers now available. All 8 of them, unearthed from the Galaxy Note 5. This bunch of Note 5 wallpapers is in Quad HD resolution too, hence fully usable on devices like LG G3, G4, Nexus 6, Galaxy S6, etc.
Btw, if you already own a Note 5, have a look at wallpaper packs of other devices and OEMs below (see the bullet list!). In order to use these Note 5 wallpapers on the device of your choice, simply download the zip file from above, and extract it using software like 7-zip (free). Now, transfer the wallpapers to your device, and use a Gallery app or file manager app to locate them and set as wallpaper.
→ Download Note 5 wallpapers | File: note5wallies-theandroidsoul.com.zip (12.54 MB)
Btw, do check out stock wallpapers from various devices as given below.