A stunningly detailed close-up portrait of a captivating mecha girl, featuring dark-tipped beige blonde hair framing her angelic face. Her seductive eyes and pouty thin lips add to her mesmerizing allure. She wears intricate white-silver armor adorned with elegant head accessories. The scene is captured in ultra high detail with HDR, creating a bokeh effect with soft light bloom and cinematic lighting. The image exhibits deep illumination and a finely tuned depth of field, akin to concept art rendered in Unreal Engine 5 with RTX for photorealism. Subtle creative touches enhance the composition, while the overall essence of the mecha girl remains intact, despite the artistic depiction of missing arms and hands. The design hints at a watermark subtly blending with the image.