This is an interesting idea which I don’t remember seeing or thinking of in the past. Taking an attractive pattern, of your choosing, from the outside of the device to the wallpaper of home screen. Not brilliant but might appeal to some.
In this case I think it is simply an artist rendering of what is an attractive pattern for the coming holiday season. Canadian ‘Nitza’ designs the artwork and the skin is shipped to you from the US. Nice. especially if you would like to add sue extra scratch protection or get tired of the cool Rams inspired aesthetic of the iPhone.
iPhone Christmas Skin Kit