Here are my Knuckelf (What Knuckle Joe is) OCs when they were children in their preteens.

Keep that in mind that Jarek is canonically three years older than Ryo and Amethyst while Chione's one year younger than Jarek canonically.

Also Amethyst won't meet Jarek and Chione until the present day.
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Drawn on ibisPaint X on my Samsung Galaxy Tab A.

Kirby series © Nintendo

Ryo Nobleheart, Princess Amethyst, Jarek, and Chione © Me