Chibi Sparrow Four-Pose Sheet

Goal: Create a clean character pose sheet of a cute chibi sparrow mascot, showing exactly 4 discrete poses on a plain white background. Canvas: Square 1:1 canvas, high resolution, no border, no text, no shadows or scenery. Arrange the bird poses in a balanced 2-by-2 grid with generous white space between them. Subject details: The character is a round, front-facing chibi {argument name="bird species" default="sparrow"} with an oversized head and tiny body. It has a warm chestnut-brown head, glossy black bead eyes with small white highlights, a short dark charcoal beak, cream-colored cheeks and fluffy cream belly, dark cheek patches, tiny brown feet with little claws, and layered orange-brown wings with darker feather tips. Use a cute sticker-like anime illustration style with clean dark outlines, soft cel shading, painterly feather details, and a polished mascot design. Pose count and layout: Include exactly 4 separate full-body bird drawings: 1) top left, wings raised high vertically in an excited upward flap; 2) top right, wings spread straight outward horizontally; 3) bottom left, wings hanging downward along the sides in a resting/downstroke pose; 4) bottom right, wings spread outward again in a symmetrical mid-flap pose. All 4 birds should face forward and keep the same facial expression and proportions. Visual style: Adorable Japanese game mascot / sticker art, crisp linework, warm natural browns and creams, detailed layered feathers, soft highlights, clean white background, centered composition. Constraints: Show exactly four poses, no extra birds, no labels, no accessories, no environment, no watermark, no cropped wings or feet.