A realistic humanoid snake relaxing in a hot spring: A muscular, humanoid snake with a serpentine lower body and a human-like torso, coiled comfortably in a natural hot spring. Its upper body has defined muscles and smooth, iridescent scales, while its face retains snake-like features (slit pupils, forked tongue) but with a humanized expression of relaxation. The steam rises gently around its body, and the water reflects the warm tones of the surrounding rocks and vegetation. The background features a serene forest setting, with moss-covered rocks, distant trees, and soft sunlight filtering through the mist. Focus on realistic anatomy, scale texture, water and steam effects, and the tranquil atmosphere of the hot spring.