Photorealistic amateur home photo, shot on iPhone front camera, natural indoor lighting, vertical 9:16 format. A young woman who genuinely looks like an 18-year-old teenager — youthful round face, minimal makeup, fresh unblemished skin, soft facial features, clearly younger than 25 years old. She has blonde hair tied back in a ponytail, looking like she just woke up. She wears a plain gray home pajama set (long-sleeve top and shorts). She stands behind a table with a white birthday cake in front of her, with two golden number candles reading "18" burning on top of the cake. Background: a plain, neutral, empty wall directly behind her — no bed, no furniture, no bedroom items visible, just a simple flat wall. Natural casual home-video photo quality, slightly imperfect lighting, realistic skin texture with visible pores, not overly polished or CGI-looking.
