Thanks Cheryl... it was not quite what I had wished for but I've grown to love it.
It is positioned wrong for morning/evening sun exposure. As a result it is impossible to leave any plants in it for the summer even with shadecloth. I actually left one succulent I didn't care for in the GH last summer. It survived and is still there. May have to leave it out this winter and see how it likes that. lol
So in summer I have two retractable clotheslines that span the length. That works great and I tried to position the plants this winter so I can continue to use them.
In the normal sense, it does not look like a greenhouse with these walls but I find it is very efficient. The cold normally enters at ground level and this type of wall helps prevent that.
Looking forward to seeing what Sandi can persuade her husband to design. I love some the temporary plant shelters they have built in the past.