Cute Fluffy Letter Character

In a square size of 1080x1080 pixels, render the cute letter "[Alphabet]" into a charming, fluffy appearance. Transform the font into a "living thing," with the form of the letters themselves serving as the main structure of this image. Add expressive, movable eyes and cheerful mouths, making them an indispensable part of letter design. Give the image surface texture by covering it with dense [colored] plush — this plush mimics the material of high-quality plush toys, presenting photorealistic fiber details.
Using a pure white background to highlight the main subject, the strong contrast maximizes the focus on this letter image. By carefully designing facial positions and expressions, we infused this creation with [emotion]. Maintain a clean and elegant overall style: avoid complex body structures or unnecessary body parts. Cinema-grade lighting techniques are used for illumination: the main light highlights the surface texture, auxiliary contour light shapes three-dimensional, and is complemented by ambient fill light to soften shadow contrasts. The final result is the aesthetic texture of a top animation studio.