Nathaniel "rocks" the past!

I basically used sharp rocks to mark my canvas rock like a pencil. I then used some mud for shadows. I tried working with a hand made brush from a plant but that didn't really work. It may be hard to see but it's a picture of four figures out in the sun and next to a stream. On the left side is like a thick mixture of edges. It's meant to be a picture of my family and I in the present and looking to the left. The left symbolizes the future which is unknown. Almost a way of saying the present is certain but the future is unclear.