"Create a realistic, detailed 3D model of an old wooden raft. The raft should be made of rough, weathered wooden logs tied together with frayed ropes. Include natural imperfections like cracks, knots, and uneven edges on the logs. Add subtle details like moss or water stains to emphasize age and use. The design should feature a few simple wooden crossbeams for stability, with a rustic and hand-crafted appearance. Ensure the textures highlight the wood’s grain and weathering."