Create a hyper-realistic, hyper-detailed depiction of a turtle with a perfectly manicured lawn on its shell, complete with a white picket fence and a sign that reads "Keep Off The Grass!" in bold, red letters. The lawn is a vibrant, emerald green, with delicate blades of grass that seem to sway in the breeze. The turtle's shell is a weathered, brown color, with subtle texture and cracks that seem to add to the illusion of a miniature suburban landscape. Style: hyper-realistic, detailed, whimsical. Colors: green, brown, white, red. Highest-Quality, 4k, Masterpiece