Design a decorative music box with an ornate, vintage aesthetic. The box should be rectangular with intricate floral carvings along the sides and a glossy finish in a warm, reddish-brown hue. Instead of a ballerina, place a whimsical fairy figurine with delicate, iridescent wings that sparkle in light. The lid should have a gently curved top, featuring a mirror inside, and the winding key should be stylishly integrated into the design. The interior should have the mechanism visible, surrounded by small, colorful music note decorations.