I love the clean style and colours of many newspaper illustrations. With Adobe Illustrator, I enjoyed taking such an illustration and recreating it with slight variation in line and colour.
The use of colour to signify perspective and layers is great: strong colours to the front, muted tones to the back. It was a great was to master repeating and moving the same element multiple times to form more complex shapes, such as in the industrial constructions. Also the constant clean curves of the pipework an enjoyable challenge to get right!