1girl, firefly \(honkai: star rail\), solo, black thighhighs, hairband, gradient skirt, hair ornament, blouse, frilled collar, cropped jacket, yellow neckerchief, cowboy shot, standing, floating hair, depth of field, hand on own chest, crying with eyes open, light smile, bokeh, fireflies, night , masterpiece, best quality, high quality, highres, ultra-detailed,