Some of the windows in the 1st pic, you wont be able to clean with a WFP, apart from that I would go with one pound a window on commercial work, so your about right, but remember if you get every job your price then your to cheap, and end of the day there are more windows than window cleaners, stick at your price and in time you will have a good round and the competition will be working twice as hard for the same money
Andy