Study

I wanted to switch gears and do some architecture... then I realized how slow I am at doing these.  I started out trying to sketch from memory, but it just didn't work.  I knew too little about principles of architecture to be able to fill in the blanks.  So mid-way through the sketch, I gave up and began drawing directly from the reference.

Reference: http://fav.me/d34d84j

I'd give a lot to be able to draw like this guy :)