My Maori Art Work With Whaea Toni

This is my moari art work I did with whaea Toni for a day.
It represents the Earth by:  (Green - grass)  (Blue - water)  (Grey - cobble)
With this art work it can tell a story to some Maoris like to me I can tell that the water is crashing up to the land and the cobble is just siting there like a bunch of coal never been picked up.