Generate a semi-realistic 3D model of a monstrous bat creature designed for a dark fantasy or sci-fi game. The creature should have large, membranous wings with visible bone structure, a muscular torso, and clawed feet capable of perching or grabbing prey. Its head should combine bat and demonic features — think sharp teeth, elongated ears, and glowing eyes. The texture should emphasize leathery skin and subtle fur patches, especially around the chest, shoulders, and face. Include enough anatomical detail to support flight and grounded movement. The model should be clean, optimized, and rig-ready for animation.