A heartwarming photograph of a niece surrounded by her loved ones, holding a 'Happy Birthday' sign and a bouquet of flowers, with a big smile on her face and a warm glow in her eyes.

A whimsical digital art piece featuring a niece blowing out candles on a multi-tiered birthday cake, with a unicorn and rainbow-colored clouds surrounding her, and a 'Happy Birthday' message written in glittery letters.

A bright and colorful illustration of a smiling niece surrounded by balloons, cake, and presents, with a big 'Happy Birthday' banner in the background, celebrating her special day with a big smile and sparkles in her eyes.