With the windows and door in, it really looks nice!!! I really like that window on the top. Not sure why, but it does all something to the building that I wasn't expecting.
I the framing PT? All of it? From one of the pictures, it looks to have a green tint to it, but I don't know why you'd use PT wood for your framing? If you do for some reason, did you use hot dipped galvanized nails, or nails specially rated for the new Preasure Treating of the wood? If not, you might want to add some nails or screws to your OSB and the lumber it'self as the chemicals in the PT wood will corrode the fasteners away in just a few years. Or so I'm told and I've read.
Are you going all the way to the ground with the siding? or are you going to put a nice brick or rock wainscoating along the bottom?
Eddie