fish 3d model

Create a 3D-printable master model for a plaster slip-casting mold. Show the fish from a top view, as if seen from above in water, not from the side. The fish must be minimalist and simplified: only the body silhouette, tail fin, and basic fins. No eyes, no lips, no scales, no texture, no small details. The bottom side must be completely flat for casting. The top side should have low, smooth relief with rounded transitions. Avoid all undercuts, deep grooves, sharp edges, and thin fragile fins. Add slight draft angles so the master can be removed cleanly from plaster without getting stuck. Include a simple rectangular formwork box around the fish with enough margin for plaster. Functional, clean, workshop-ready, optimized for easy demolding and ceramic slip casting.