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 rich sapphire blue, decorated with silver constellation patterns, tiny glowing stars, delicate frosty snowflakes, and swirling ice crystal vines. The door is framed by a thick white carved nalichnik (traditional Russian door trim) with soft rounded edges, star patterns, and geometric frost ornaments. The door has a rounded arch top, decorative wrought-iron hinges shaped like snowflakes, 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.
