green dragon bookmark 3d model

Create a 3D printable bookmark based on the uploaded image of a cute dragon. The model must be optimized for FDM 3D printing with NO supports, NO overhangs, NO bridges, and NO floating parts. Design requirements: - The bookmark must start from a completely flat base. - The lower part (the tongue that goes between book pages) must be flat, rectangular, and uniform, with a thickness between 1 and 2 mm. - From the flat base, the dragon shape must gradually rise using smooth vertical relief only (bas-relief style). - The maximum thickness of the dragon area must be between 10 and 20 mm. - All details (face, eyes, horns, wings, body segments) must be created as raised reliefs, never as detached or overhanging geometry. - No undercuts, no steep angles greater than 45 degrees. - All surfaces must be printable layer by layer from bottom to top. Style and shape: - Keep the dragon cute and friendly, similar to the reference image. - Emphasize the face, eyes, and body details using layered height differences. - The ba