Small studies can be done a lot faster than large ones in most cases, which can have several advantages. For one the small study provides quick gratification since one like this can be completed in one or two sittings. There is more learned from doing 10 small studies than 1 large one. About two years into my painting 'career' I tried to switch to large format, but it did not go well at first and so I switched to mostly small format paintings. In 2004 I did "Construction at site 22" part of the lab book series which would be one of the largest at 44 inch x 30 inch. This one is about 5 inch by 7 inch. There is another version of the same design on the back of this painting, I was not happy with that version so this was the improved version.
Watercolour 5x7", August 2015