Slightly off topic.
I found 1 motif after 7 days of game play, then yesterday I was doing the main quest and found 3 different motifs all in the small area!
I then relogged several times and got nothing good at that point.
Edit: Motif spawns are weird.
People farm them by finding nice areas with lots of places to check in one location, then relogging and it all refreshes.