The image is a simple black and white line drawing, featuring a Calla Lily as the key focus. The Calla Lily is elegantly structured with minimalistic and thin lines allowing for larger open spaces, ideal for easy coloring. The precise details of the flower, including its unique curved shape and the interior details, are depicted with very thin black lines. No black fill has been used, instead, the shading is implied by the line work itself. The flower sits within an uncomplicated environment, with minimal background details, to not divert focus from the primary subject. The entire design adheres to the simplicity requested in the prompt and is perfectly suited for a coloring page.