A Stylized YouTube thumbnail prompt using specific character

This character, upper body only, with a playful pose and expression, for a YouTube thumbnail.

YouTube thumbnail with large prominent text and furigana.

Pop, bright lighting.

A simple background composed with borders/stripes.

Pop, playful style with a simple bordered/striped background.

Use upper body only, playful pose and expression; insert the large text 'zatsudan' (chit-chat) with the furigana reading 'zatsudan'; poppy impression but with a simple striped background. Variant suggestion: change the same composition into an illustration style for use as a social card image, and a realistic version for an e-commerce product detail page.