The inspiration is come from Koi fish. "KOI FISH" represent  good fortune and luck.  they also are associated with perseverance in adversity and strength of purpose, the Koi fish symbolize good luck, abundance and perseverance. . 

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I created the series of illustration, and it could be use on the various packaging design.
It is represent that the packaging will send the "luck, abundance and perseverance" to customers.