Dickensian London Drawing

I create drawings in a tightly restricted format - 16" square drawing on white mount board using rapidograph and pantone markers. The discipline of having a very limited format is surprisingly inspiring. Along with the size, format and materials, I'm also restricted to 'what I can draw' (ie I can't draw people) and also the elements that I use in those drawings - the leaves, the buildings, waves, geometric shapes, iconic themes (flags and other symbols). But within those confines, I find that I have more creative ideas than I have time to produce. I have a mental waiting list of drawings that I have yet to make real in ink. Also, as time goes on, I find new concepts to incorporate into new designs, and so the style evolves. But, as each drawing takes at least 20 man-hours to complete, it's a slow-drip development. I find there's something wholesome about doing laborious, detailed work by hand - and the fact that you cannot easily edit it, once you have drawn a line on paper, makes everything more of a commitment and therefore more important as you are doing it.