Thanks for sharing. I've built my greenhouse about 7 years ago not knowing much of what I was expecting.
Keep in mind that in the summer it gets extremely hot in there, so vents and shading is a must. Heating is also necessary.
Here's my greenhouse.
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Bass

I built mine for humidity control when rooting cuttings, etc. The day after I filled it, it spiked to 100F here. So immediately I was adding shade on the top, to keep temps reasonable. You need mister(s), vents (maybe a fan), and maybe heat in the winter (I don't). The doublewall plastic glazing works nice. Keep it simple.

About 35 years ago we built a greenhouse out of 2x4s and plastic. The plastic was stapled on and the stapled area was covered with lathing. The lathing was necessary to prevent the wind from tearing the plastic through the staples. It was made in two pieces that were bolted together and it had a small window to compensate for heat build up on sunny warm days. During the cold months the greenhouse which was 4'x12' with a pitched roof (high 8', low 6') rested against the house which had 9' wide sliding glass doors opening onto a patio. Because the greenhouse was so narrow, 4', the heat loss from the doors was enough to keep it above freezing on all but the coldest days. On those days opening the glass door (about 6') was enough to maintain above freezing temperatures. When warm weather came we unbolted the two pieces and carried it to an unused part of the yard. This worked for several winters until we moved. Then we doubled the width from 4' to 8'and had the greenhouse against solid basement doors. I do not know whether it was the doubling, the solid doors or the basement that was the problem but it no longer worked. While it was working the heating bills were higher during the very coldest months but lower the rest of the time so that over all our yearly bill was lower. I guess the greenhouse acted as insulation for the large glass area of the sliding doors.
One of the books that I read to study the subject before we built the greenhouse was Winter Flowers in Greenhouse and Sun-heated Pit by Kathryn S. Taylor. The interesting part is the sun-heated pit, which was an old technology when the book was written in 1941, can be kept above freezing without needing fuel to heat it. It is a bother to keep removing and replacing the cover but because figs go dormant, it would only have to be done when the gardener wanted to retain or initiate active growth.
Hope this is of interest or help to someone.

Cath