I have a 6 page article in the Art of Watercolor magazine from in the 16th issue (October-November 2014). Here is a PDF. It's fun to be in a magazine, and there is a lot of other good work in it as well. I use a lot of drafting tape and toothbrush in my work, I tried to show an example of how I use it in thew article. I always forget to mention I learned the technique from Alain Gavin, who teaches in Evanston, IL.
Here is a recent project I did with Manuel Avila Associates. At first glance, they seem like sketches, but Sketchup created the fake sketch look, and we did basic watercolor washes on top. They're purposely meant to convey an unfinished design. We use Sketchup to box out views and and add repeating detail, like chairs and tables.
Century Mine No.3 Hoist House I have been fascinated by the copper mines up in The Keweenaw Peninsula of Michigan, and this is my favorite one because it's the only one that's mostly wood. I love the exploded, deteriorated nature of it, including the fact that it's sitting quietly along a side road with no fences or signs. I mirrored the Hoist House tower on either side, because I love the repetition of it. I also enjoyed creating depth inside the big opening for the mine car.