"Scientific anatomical illustration, clean white background. On the left: anterior (frontal) view of the human muscular system, male, semi-transparent skin showing superficial muscles. On the right: posterior (back) view, same style. Each muscle group clearly labeled with lines pointing to the muscle, with labels in both Spanish and English in a neat, sans-serif font. Example labels: 'Pectoral / Pectoral', 'BĂceps / BĂceps', 'Cuádriceps / Quadriceps', 'GlĂşteos / Glutes', 'Trapecio / Trapezius', 'Deltoides / Deltoid'. Professional, educational, medical poster style, high detail, no shading, neutral lighting, accurate anatomy." See more