Normally the mosques have enough capacity for everyone to pray inside but during Ramadan these is overspill into the areas outside the building. That is what these carpets are for, stacked and ready for the next prayer.
Quite a rarity - I like the colour version of this shot. The street light which illuminated this scene created a colour balance (and shadows) similar to golden hour, even though it was 11pm
I still like the B&W too though.