Artist Reply: It has taken me progressively longer to get things done as I have gotten older. I used to be able to work 10 to 12 hours per day. In 2003 I suffered a spinal cord injury and although I still have full use of my limbs and can walk (with a cane and not very far), the pain from the nerve damage and trauma from all of the surgeries has limited how many hours a day I can work. I have also gotten much more particular about quality and the difficulty of the scenes that I am painting. I am interested in difficult illumination and am therefore doing a lot of rain and twilight scenes lately. At 62 years of age I am very concerned about legacy. This 18 x 24 inch painting took one month, working seven days a week, from 10 to 12 hours a day. The last full size 30 x 40 inch watercolor I completed was San Francisco Market street ca. 1941, and that took 9 months working 2 to 4 hours a day 3 to five days a week. I have become far more efficient in my painting through experience and the organization and computerizing my images while I paint. Thanks for asking.