Illuminated heart-shaped floral arch in courtyard with glowing lights

3D-rendered architectural visualization depicting narrow courtyard bounded by stone buildings with climbing ivy. Central focal point: oversized heart-shaped structure composed of densely-packed flowering plants, internally illuminated with warm-toned LED lighting at approximately 3000K color temperature. Secondary heart-shaped element suspended behind primary arch. Ambient environmental illumination establishes golden-hour atmospheric conditions. Terracotta paving tiles grid flooring. Floating red petal elements scatter throughout composition. Lighting methodology employs backlighting techniques to render volumetric glow effects on floral substrate.