Create a photorealistic 3D render of a compact quadcopter drone with the following precise features: – Four ducted fans, each housing a 6-blade propeller with narrow 10 % chord blades. – Circular carbon-fiber shrouds around each rotor, inner diameter matching blade tips with a 2 % gap. – Shroud cross-section shaped as an aerodynamic airfoil with 12° inlet and outlet bevels. – Six fixed inverse-cambered stator vanes evenly spaced downstream of each rotor inside the duct. – Inner shroud walls lined with 5 mm melamine acoustic foam backed by a 6 mm air cavity, visible as a dark grey porous texture. – Brushless outrunner motors painted matte black with silver end-caps, mounted on a rigid carbon-fiber X-frame. – Frame arms 20 mm wide, 3 mm thick, with integrated rubber vibration isolators between motors and frame. – Top plate housing a small rectangular battery pack with LED charge-status indicator. – Neutral studio lighting on a white background, camera angle 45° front-side, showing duct interior and blade detail. See more