Chibi Anime Poster Illustration

Wide {argument name="style" default="chibi anime poster"} composition, {argument name="character" default="young boy character with spiky yellow hair standing confidently with sword and backpack"}, {argument name="background" default="bold yellow gradient background"}, lightning bolt accent graphics scattered throughout, large brush-stroke name typography along top edge, clean negative space at bottom for additional text or logo, vibrant anime poster illustration style, vertical 4:5 --ar 4:5 --v 6