It's ideal (but sometimes, um, challenging) to use a challenge to find a reason to take a photo that is worthwhile and compelling on its own merits, not simply because it meets the challenge. Your potholes are interestingly-shaped, but in a year will you look at this photograph and say, 'I'm glad I took that'? I say this in all kindness and humility, because it's an epiphany I had myself at this site only very recently.