Riding on a Carp Streamer

score_9, score_8_up, score_7_up, rating_safe, 1girl, kindergarten children, sailor-collar smock, flat breasts, (perky breasts:1.2), impossible clothes, riding on a carp streamer (koinobori), giant koinobori, flying in the sky, heading toward a mountain range, white clouds, endless blue sky, smiling happily, beginning of an adventure, dynamic composition, fantasy world,　cowboy shot, best quality, masterpiece