640 square ft. modified shed to cozy cabin

I wanted a rustic farm building on my property. I ordered a large shed and spent a few years slowly constructing a rustic struture. I used reclaimed items where I could. Old doors from a 1930's house, turned them into pocket and barn doors. Wooden bleachers from a school that were going to a landfill. I plugged holes with wooden dowels, sanded and painted and used them for shiplap walls. I used old wood from a 1840's tobacco barn for ceiling trim. I researched many shed companies in my area and none of them would apply exterior house wrap, or insulate underneath the shed. So I had the shed brought in and placed on the usual blocks and tied down. I hired a guy to level and pack the soil down. Then I applied insulation under the shed, oh, what fun.
For the next year , on weekends, I worked inside the shed. I wanted it to sit for a while since it wasn't placed on a traditional foundation. I knew drywall would be installed in a few areas and wanted the shed to have time to settle. I partitioned a few walls, installed the pocket and barn doors, painting and flooring installed. the following spring, I framed the shed foundation added insulation board, tacked up mesh wire and applied stucco. Inside, ran the electrical, plumbing. built/installed kitchen cabinets. Installed rockwool insulation, added a bathroom with a shower and sink. I used my old, reclaimed kitchen sink my wife had saved when we purchased our old farm house 35 years ago, after a remodel.
In December, we applied drywall on the ceilings and bathroom. We built a small hearth for a small Jotul wood stove and installed. When spring came we added a 10 foot overhang all the way around the shed, I knew I wanted to do this before the shed was even delivered. The shed came with a 50 year smart side warranty. My wife picked a nice shade of green. BUT WITH MOST SHED COMPANIES THEIR QUALITY CONTROL IS SUBPAR. I won't go into details with the things I had to repair. After the wrap around 10 ft. roof, we added decks.
My wife was delighted that we were 90% through with this project.
Nope.I added gutters and installed a Daiken mini split. I removed all 7 windows and purchased/installed insulated windows. I added 1/2 inch insulation board and applied 12' oc t1-11. I hated the smart side siding. Then I added battens. I stained the t1-11 and have to wait on the battens because they are fresh from the sawmill. Now I need to stain the decks and a few minor things and I'm finished. Whew!
Here are a few pics.

Is it a steel framed shed or a timber framed shed to start with.
The outcome is good, well done.