It's a cool background and the idea of 'just rice' is good but the actual subject (the arms) just doesn't pull this together IMO. The light is right, I like the B&W, just not the rice-in-hands.
I think you have 2 ideas here that could have either one been better as a solo representation of poverty. (The rice or the paint-pealed doorstep.)
Together it just doesn't work (IMO) It's out of context, I thought "why is that person holding a hand full of rice in front of a porch step"