Imagine a tranquil, moonlit beach where a family of sea turtles is making its way to the ocean under the starry night sky. The soft sand glistens in the moonlight, and gentle waves lap at the shore. The mother turtle leads her hatchlings, their tiny flippers leaving delicate trails in the sand. In the distance, a lighthouse casts a steady beam of light, guiding them on their journey. Capture this heartwarming scene in an evocative, monochromatic art style, emphasizing the serene beauty and determination of the turtles' nocturnal journey.