1girl, Stella, beautiful, magenta-pink eyes, long white-silver hair, low ponytail, small white-blue petaled flower bow with tiny black ribbon, pale porcelain smooth cel-shaded skin, delicate rose blush, peachy-pink flushed cheeks, wearing a cute elegant summer dress, white sleeveless dress, light blue accents, fitted bodice, knee-length skirt, soft flowing fabric, delicate ribbon details, simple white sandals, extremely startled by a sudden loud fireworks boom, exaggerated comedic shock, eyes comically wide open, pupils tiny, eyebrows shooting upward, mouth opened in a huge shocked gasp, jaw dropped, cheeks puffed from surprise, comically terrified expression, frozen in shock, shoulders raised, arms flailing slightly, body recoiling backward, long white-silver hair completely standing on end from the shock, every strand sticking upward, low ponytail blown straight upward, flower bow tilted from the sudden movement, huge fireworks explosion directly behind her, bright colorful burst, sparkling trails, dramatic flash, nighttime sky, festive atmosphere, humorous anime reaction, exaggerated motion, comedic timing