Illustrate a plush toy mouse with an elongated, minimalist design inspired by Edward Gorey's style. The toy should have exaggeratedly long limbs and an oversized head, capturing a melancholy yet whimsical charm. Use intricate cross-hatching to give depth to the texture of the fabric, especially around the seams and contours of the mouse’s simple yet expressive shape. Maintain a muted color palette, focusing on subtle shading to create an eerie atmosphere. Keep the background minimal, with ample negative space, allowing the mouse figure to appear isolated. Add a small, symbolic motif--perhaps a single shadow or faint outline--to emphasize the theme of loneliness and simplicity in a surreal, vintage-inspired style.