What name best describes this style of pen-and-ink art?
So, when I first looked at it my reaction was "mosaic" was the root of the style and so I did a little digging and came across the concept of "doodle mosaic" that really seems to fit. The other reason that worked for me its the there is a Zen Doodle feel as well, the sense that the sum of the parts are creating a bigger result.