I never know when,what or why exactly

I never know when, what or why exactly something might suddenly grab my attention. This is a side street near where I live in Harlesden. Although it was around 6.30 in the morning it could easily be night.
When I look closely I’m intrigued by the combination of the different patterns on the cobbled stones, brickwork and slats of wood, covered in graffiti scrawls… 

accentuated in the darkness byartificial light, that drew me in.