This more expressive cityscape and even dynamic? is the latest way of working in this series. Attempting to be more spontaneous and work with the apple pencil and mark making in less obvious ways.
There is also the use of the coloured fineliner tool in Paper53. The detailed line that his offers is a contrast to the more blurred pencil effect. The light and darks become either positive or the negative, the play with depth and space makes the city more a pattern, a design than the 3D world we know.