skeleton brothers, Sans and Papyrus, cartoon style, dynamic duo, Sans: blue hoodie, shorts, slippers, lazy smile, winking eye, Papyrus: red scarf, white battle body, gloves, confident pose, standing, Sans: sitting on a snowdrift, snowy landscape, Snowdin Forest, Undertale, pine trees, soft snowfall, ambient cold blue lighting, 3/4 view, detailed textures, comic book ink lines, action scene, expressive faces, humorous interaction, warm and cool contrast, dynamic shadows, spotlight effect.