To be honest, this drawing is my favorite one is all of those. I got the original image from internet and I really love it. I sketch the outline of these houses in class and then I spent two nights working on the color part. Coloring wasn't that hard but mixing all the paints to make the color is tricky.
When I finished the coloring, I brought it to the class and covered it with india ink. It was kind of scary that I was afraid if some part of the color will be covered. Then I wash the whole paint under water. It is not perfect but I love the "nostalgia" and "vintage" feeling of the painting.