HI fandoank, NIce work so far!
The graphic you used in #s 23-36 of the lighthouse won't "fly with Nantucketers", they don't really look like any of our lighthouses. Here are some photos that might help.
http://www.google.com/search?q=nantucket+lighthouses&hl=en&tbo=u&qscrl=1&rlz=1T4ADRA_enUS373US373&tbm=isch&source=univ&sa=X&ei=Ui0JUZ7GBo6J0QGAlYGYBw&sqi=2&ved=0CDwQsAQ&biw=1680&bih=871 Removing the doorway might be helpful, as the images are getting a bit cluttered. I do like the first few that you did. I also like the color variations you used in #30.