At this point, I have started to put in some medium tones with my 2b pencil and then start to add in some darker tones and shadows. As I added more and more, I would blend each addition using a tortillion, which is basically just a rolled up piece of paper, which can be purchased at art supply just about any where. They are available in small, medium and large sizes. I tend to use the small and medium for most of my work.
As you may be able to see from this photo, I started at the left front of the building, working my way around to the right side. That's how I generally work, doing sort of a layering of tone and building that up.
I have also put in just a bit of detail. For me, drawing is about realism and to achieve that, detail really is everything.
Part 3 is coming real soon!