make very subtle realistic enhancements to the image while preserving the original atmosphere and composition slightly improve fine details and textures to look a bit more natural and realistic without over sharpening add very soft hidden ambient lighting inside the shelves located on the central grid structure the lighting should be discreet warm neutral and barely noticeable as if integrated led strips are subtly illuminating the shelves add faint natural daylight entering softly from the left window at a slight diagonal angle creating gentle realistic light falloff and soft shadows outside the left window introduce a very subtle and slightly blurred urban scene a sidewalk and small shops across the street resembling a typical athens street the exterior should be faint and not distract from the interior just lightly visible shapes signage and building facades maintain realism at all times avoid dramatic lighting avoid over processing and keep all changes minimal and natural