lungs, cells, and other dark wet things

the progress is as follows

Leonardo's Lungs

these are small drawings I'm working on. a series of twenty in total. I'm reading Da Vinci's journals of anatomical drawings, which he had to keep secret from a Roman government that forbade human dissection. The pieces, when finished, will have very dark, dense negative space filled with incorrect anatomical drawings that preceded Da Vinci, and are only guesses, as opposed to observed. I'm sort of talking about dark as an allegory for ignorance and also fear, and light as one for knowledge and also courage.