Art in Community among the Poor

This is a trial run of a project with marginalized kids doodling in sand. There images appear and dissapear. I hope to make a longer smoother version as I work with these young kids more. I just took another 1000+ frames to work with. Where we live kids are told they have no talent early on. This is a very non threatening way for them to play with lines and shapes. Any ideas on a story line that could go along with these images? I am thinking of having the kids develope some ideas.