Why are all the quests images the same?

What you’re seeing isn’t and issue! They are shown like that because the quests aren’t unlocked yet (the icon means locked or “open” quest)! 

Once users earn them, they will be shown the colored token, this way people are encouraged to finish the quests to “unlock” the tokens!. What you see in the live preview is an example of some of the tokens locked, and others unlocked.