Art style: Cinematic Realistic.
The same anatomical oesophagus diagram slide, now with both sphincter valves emphasised by strong pulsing glowing rings, top and bottom, both sealed shut. Centred vertical composition, eye-level flat framing, subtle directional arrows indicating closure. Soft even clinical lighting with intensified teal glow around both valves. Reassuring yet precise, mechanism-focused mood. Palette of deep navy background, soft pink anatomical tones, and bright teal accent highlights.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Cinematic Realistic" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Cinematic Realistic". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Cinematic Realistic" idiom, not in any other medium.
