A light beige plastic anatomical skeleton model is positioned in the foreground, seated on a white windowsill or ledge

A light beige plastic anatomical skeleton model is positioned in the foreground, seated on a white windowsill or ledge. The skeleton faces slightly left and upwards, with its right arm resting near a transparent plastic water bottle containing clear liquid and air bubbles, sealed with a red screw-top cap. The eyes of the skeleton are dark, and its jaw is slightly open. Through the window in the background, an urban environment in Sofia, Bulgaria, is visible under a partially cloudy sky. To the left, a multi-story building with a yellow facade and numerous rectangular windows extends upwards. To the right, bare deciduous trees with visible branches are silhouetted against the sky, indicating a season devoid of foliage.