Un avatar redondo de un muñeco de nieve en pixel art, sin texto de titular, creado como gráfico navideño de invierno en estilo retro de 8 bits. Un muñeco de nieve sonriente con sombrero de copa verde oscuro, bufanda verde brillante y nariz naranja está sobre un círculo azul marino con copos de nieve. Al no tener letras, puedes añadir tu nombre, saludo o fecha alrededor o debajo del círculo para crear una foto de perfil o una tarjeta.

Create a square Christmas profile avatar in crisp retro video-game pixel art. Center one original, cheerful snowman whose face is the clear focal point: two bright coal eyes, a small carrot nose, and a warm curved smile. Dress him in a simple little dark green top hat and a vivid green scarf wrapped around his neck, with two blocky scarf ends. Use bold, clean pixel clusters on a consistent coarse grid; sharp stepped edges, no antialiasing, no painterly texture, no photorealism. Set him against a deep midnight-blue night with a handful of distinct pale-blue and icy-white pixel snowflakes and sparse falling snow. Keep the background quiet so the face reads instantly at tiny profile-picture size. Use a compact circular composition: snowman centered and large, with hat, scarf and all important features comfortably inside the central 78% of the canvas so nothing is lost to a circular crop. Strong silhouette, bright face against dark blue, restrained retro palette, charming and upbeat. No text, letters, numbers, logos, border, extra characters, or additional Christmas props.