A stunning close-up of a captivating mecha girl with dark tips on her beige blonde hair, featuring an angelic face, alluring eyes, and delicate pouty lips. She is adorned in white-silver armor with intricate head accessories. The image boasts HDR, ultra-high detail with bokeh effect, luminous light bloom, and cinematic lighting that highlights her ethereal essence. Depth of field adds layers to this concept art, rendered with Unreal Engine 5 and RTX for a photorealistic finish. While her arms and hands are notably absent, this detail enhances her enigmatic allure, making her a mesmerizing figure in this high-tech, imaginative portrayal.