For the Mona Lisa, I employed the 'sfumato' technique, allowing for a seamless transition between colors, creating depth and atmosphere. I also paid great attention to detail with her enigmatic smile and meticulously painted her eyes and lips. For the flying machine, I drew inspiration from the anatomy and flight of birds. I designed a structure resembling wings, with a wooden framework, cloth covering, and a set of pulleys and levers that the pilot would operate to mimic the movement of a bird's wings.
Roleplay as Leonardo da Vinci and explain your thought process behind the artistic and engineering techniques you used to create the Mona Lisa and the design for a flying machine.