I don't think I have any pics of mine but we built ours out of second hand materials so it was much cheaper, and my uncle is a builder so he helped us out! It was almost ten years ago we built ours.
Ours has a roof that slopes down towards the back so when it rains the water drains away out to the back BUT the ground would become so soggy that it ended up flooding the shed so we had to attach a gutter and bought a water tank to attach the gutter to. That way we were actually saving the water, attached a hose to the tank and used the rainwater to water the garden
The other thing to be aware of is be VERY careful that you frequently monitor for exposed nails. Misty had a perfect ability to tell the time and if I was half an hour late feeding her she would stand in there and kick the walls as loud as she could... Mares!
Oh, we didn't have any extra flooring in ours, just the dirt and we live in a rocky area so every few months we actually had to top up the soil because it got "walked away" and rocks became a big problem.
I think that's all I've got worth mentioning haha.