Generate a photograph of a single gray tabby cat sitting under a clear, transparent umbrella that is lying flat on the ground, as if it has been set down to provide shelter. The cat appears calm and relaxed, looking slightly upward, surrounded by raindrops on the umbrella, which create a cozy, sheltered feel despite the outdoor setting. Soft, natural lighting from an overcast sky softly illuminates the scene, with subtle shadows that enhance the quiet, rainy atmosphere. The setting includes a long, wet concrete staircase in the background, fading upwards into the distance, and some grassy earth along the side. The color palette is subdued and natural, with earthy tones—grays, greens, and browns—to evoke a peaceful, rainy-day mood. The camera angle is slightly above the cat, capturing the scene in a centered, balanced composition, with the umbrella lying flat on the wet ground. The transparent umbrella shows the raindrops clearly, enhancing the tranquil solitude of the cat on this rainy day.