Hmm. I kinda suck with descriptions but I guess I could give it a try.
Ernest is a lanky tall man with a long hooked nose and pale skin almost ivory. He has big deep brown eyes, thick eyebrows and long brown hair. His face is thin with sunken eyes and a thin mouth.
His clothes are of a fine silk grey and red striped ascot tie, a neatly fitting white dress shirt with a high detachable collar, black dress pants and black heeled shoes.

(I can’t describe the shoes lol)
Ernest had a false leg on his left. It was of a copper color with the foot seemingly being made of rubber for his comfort and on the knee also being made of rubber. It is detachable at his knee so he can take the leg off while resting. It takes a toll on him.
He is often in his lab away from the town, often reading, making plans for his creations and working on them.