Create a moody image of a solitary man sitting on a park bench at twilight. The sky is overcast with dark, looming clouds, casting a bluish-gray hue over the scene. Raindrops are gently falling, creating ripples in puddles on the cobblestone path. The man has his head down, hands clasped tightly in his lap, conveying a sense of despair. Nearby, a withered tree sheds its last leaves. Dim streetlights flicker in the background, their soft glow barely illuminating his somber expression. The overall atmosphere should evoke a feeling of isolation and melancholy, inviting viewers to contemplate the man's story.