Sounds like a nice idea, but art doesn’t get the job done. Keep the joints modular, but lock them in place with a quick‑release pin so you can swap parts on the fly. Use a single high‑torque servo for the base and add small brushless units for the wrist—faster and quieter than the usual gearboxes. Make the outer shell of a composite that’s lightweight yet strong, and line it with a mesh that keeps dust out but lets you see the internal wiring. Finish it with a matte black paint and a subtle logo; it’ll look sleek without blowing up the bill of materials. Keep the firmware lean, use a single real‑time thread, and you’ll have the best of both worlds.