A cartoon of a man sitting at a table with a book and pen

An engineer drawing a plan of a hot air baloon on paper, an old medieval man weaing glasses drawing the plans of a hot air baloon, the lines in the plan are the hot air baloon to exteme details, it is painted paper, with pencil, medival study room background, high details, best quality, 16k, [ultra detailed], masterpiece, best quality, (ultra detailed), full body, ultra wide shot, photorealism 3d rendering