hyperrealistic, tween girl, smiling, short hair, riding a mountain bike, cream-colored knitted tank top, blue denim shorts, on a bright sunny day, vibrant blue sky with a few white clouds, outdoor setting, slightly soft focus on bike details, portrait style, natural light, light breeze in her hair, clear view of her face and smile, focus on body, close up, focus on the figure, not blurry or grainy.