Cute little coop for a couple of chickies. I like that bucket / pvc pipe setup for the water...clever, very clever. I have that "under the coop run" thing too...and let me tell you...cleaning it out is a pain in the rump. Hindsight being 20/20...I wish I knew then what I know now...and built bigger and incorporated much more ventilation. Hope you don't outgrown your pen like I did. Great pics showing your build progress.