Create a full 3D backpack model based on the reference image. The backpack should have a clean, smooth, rectangular shape with slightly rounded edges. Main material: matte synthetic fabric with a soft surface. Primary color: bright orange (#FFA343), with subtle circuit-like panel patterns on the surface (very soft, not too contrasted). Front Pocket: On the front pocket, create a 3D embossed face exactly like in the reference image. The face must be slightly protruding (3D relief), not flat.