phoenix (hyperion ps), cecilia immergreen, cecilia immergreen (1st costume), hololive, hololive english, highres, 1girl, ascot, closed mouth, conductor baton, corset, detached collar, detached sleeves, doll joints, gradient background, gradient hair, green background, green corset, green eyes, green hair, green skirt, grey hair, holding baton, joints, multicolored hair, red ascot, romper, skirt, smile, solo, strapless romper, virtual youtuber, white background, white romper, winding key