Vertical illustration in classic Disney 2D animation style (Golden Age Disney), soft rounded shapes, gentle linework, vibrant watercolor-like coloring, whimsical and charming design. A closed wooden arched door painted in cool cobalt blue, decorated with intricate ice lace patterns — delicate white and silver frosty vines, snowflakes, stars, and swirling crystal ornaments. The door is framed by a thick white carved nalichnik (traditional Russian door trim) with soft rounded edges, lace patterns, and geometric frost ornaments. The door has a rounded arch top, decorative wrought-iron hinges shaped like ice crystals, and a small round window with a white lattice covered in frost. A brass ring handle in the shape of a tiny horseshoe. The door is fully closed. Clean pure white background, isolated object, no scenery, no burrow interior, no background elements. Vertical portrait orientation, 2:3 aspect ratio.
