Take this exact portrait image and make it sharper, crisper and more vivid. Remove any hazy, milky, or transparent film effect. Do NOT change any physical features — same face, same body, same pose, same white blazer, same powdered pink top, same black and silver necklace, same arms crossed, transparent background. Just enhance sharpness, clarity, contrast and colour vibrancy. No blur, no haze, no soft overlay.