medieval castle 3d model

Highly detailed medieval gothic castle, stylized but realistic (not LEGO, not toy-like). Clean architectural shapes with sharp edges. Structure: tall central keep, four surrounding towers symmetrically placed, cylindrical or octagonal towers, steep pointed gothic roofs, strong vertical silhouette with layered complexity. Walls: thick, solid perimeter walls with battlements and crenellations, properly connected to towers and central keep, no gaps. Surface detail (VERY IMPORTANT): all walls and towers must be built from visible stone blocks, not smooth surfaces. Clearly defined large stone bricks with depth, irregular sizes and slight variation. Avoid flat walls completely. Details: narrow vertical windows, large circular or arched window on central tower, arched main entrance, architectural trims. Exclude: no terrain, no moat, no environment, no weapons, no fire, no smoke. Goal: detailed castle with physically defined stone block surfaces, suitable for 3D printing.