Look at Pikachu hot doggin' it up on his little surfboard! I'll bet he's got desires to become the "King of the Surf" as well as "King of the Pokémon". And I'm sure even his trainer Ash Ketchum is proud of his little yellow companion.

The basic lineart for this scene can be found here http://bestcoloringpagesforkids.com/wp-content/uploads/2021/06/Pikachu-Surfing-Coloring-Page.jpg
The pattern on the surfboard was made by "Kona_619" of pixiv http://www.pixiv.net/en/artworks/9861755
The coloring and compilation were done by me, and the character was made by Nintendo.