Create a front-facing portrait of Hatsune Miku in the style of anime illustration and sketch, the iconic virtual pop star, in the style of artist Rella. The image should focus on Miku's head from the neck up, capturing her in a cute and characterful anime style. Pay close attention to achieving symmetry in her facial features, ensuring a balanced and harmonious design. Miku's expression should be friendly and engaging, reflecting her cheerful yet mature persona. The final image should serve as a reference for creating a 3D model, so it must be presented directly facing forwards, allowing for easy tracing. Emphasize the distinctive characteristics of both Hatsune Miku and Rella's artistic style, while maintaining a high level of detail and aesthetic appeal.