Create a mosaic style artwork showcasing a biblical scene from Exodus 9:8. It should depict Moses and Aaron, two Middle-Eastern men, holding handfuls of ashes from a furnace. Moses should be seen sprinkling the ashes towards the heavens. Include the figure of Pharaoh, a Middle-Eastern man, observing this act from a distance. There should be no text or words in the image. This artwork should be respectful and devotional to Christianity.