A figure sitting by a riverbank, letting sand slip through their fingers, contemplating the passage of time facial expression: thoughtful, eyes focused on the sand, brows gently furrowed, lips pressed in quiet contemplation style: Leonardo da Vinci, perspective: close-up, early evening, colors: deep blues, soft golds, and warm browns, with the river reflecting the fading light of the sun, background: a familiar, serene riverbank with gently swaying reeds, the sound of flowing water, and the golden hues of the setting sun. --ar 9:16