Nothing strange or unusual about this poster. It's just that... I like it! I really like the fish streamers that blow in the wind, leaving an airy feeling of open space. The fish are carps, emblems of the father, mother and son, emblems of Tango no Sekku festival (the Japanese Children's Day national holiday, originally intended to celebrate young boys but now icluding both genders). Mount Fuji on the background sets the place and completes the image.
A joyful design from the hands of Kyou Miyabi, an artist from Kyoto who excels in Japanese and Otaku themes.