The id is responsible for our basic drives such as food, sex and aggressive impulses. It is amoral and egocentric, ruled by the pleasure-pain principle; it is without a sense of time; completely illogical; primarily sexual; infantile in its emotional development; will not take 'no' for an answer. (Thanks, Wiki.)
Just finished this one today. India ink over watercolor. It kind of looks like an old-timey hand colored etching, except that it isn't an etching. Probably going to explore this technique / style combo a bit more in the near future, as it was pretty satisfying.