An Insider's View of "Toledo No. 1"

I got down to business on the next stage of this Spanish cityscape over the weekend. Here's a pic of me at work and a few details of the underpainting round. I wanted to get a base of acrylic colors down that approximate what the finished version in oil paint will look like. I think I am off to a good start…what do you think?
Me with "Toledo No. 1". The finished piece is 65" x 29".
Toledo, Spain up close.
Catching the shadows of an afternoon Spanish sun. 
In case you missed it, check out The Creation of a Spanish Cityscape with a video showing how I translated my photos into the charcoal drawing that is guiding the painting stages. Enjoy!