I love the building progress photo, and the pictures of a more than adequate coop.  Great job!  
Before I built my first coop, the only thing I had ever built with wood, nails, a hammer and the kind of saw you push and pull through boards was a dog house designed and constructed sans plans.  How hard could it be to build a box with an opening in one???
I did pop the end of my left hand forefinger hammering some nails into the 2x4 pieces for the frame.  Yes, I wrote "pop."  It hurt, and bled copiously, so I came inside the house to wash my hands and put on a band-aid.  When the water from the bathroom sink flushed away the blood and I saw I had popped the end of my finger wide open, I thought to myself, "Ow."
And woke up on the floor with my beagle whining and licking my face, while blood from my finger soaked into the bath mat.  Kinda wobbily, I wrapped some bandage around it REAL TIGHT and decided to finish the dog house later.  Like the next weekend.  When I finally went to the doctor's office SEVERAL days later because the throbbing just would not stop, I was informed it was too late to get stitches, but I should have had some medical care the same day I popped that finger open.  Oh well.
And the dog house was indeed a box with an opening in front.  However, I didn't know dog houses actually use body heat for some of the shelter, so the only way my beagle would keep warm in it would be if he invited a few other dogs over for a poker party.  He never, ever used it.  My deaf Dalmation, however, liked it when I pulled it around the front yard, so she could lay inside and watch the world go by during the day.
My first coop construction project fared slightly better than the doghouse, but that's because I used some plans.  It's still quite ... unique.