Are you going to be adding additional insulation? Why didn't you go all the way to the top? What's up with the two studs near each other on the one wall?
The two boards are where my brother tried to help lol and I just insulated to the bottom of the truss cause thats as high as I'm going with osb board. The roof is already done with the bubble stuff with shiny side up.
Spray foam is pretty effective stuff. Rule of thumb tho you should have more insulation on the ceiling relative to the walls. I worked in a 4000 sqft steel building with an average inch of spray foam all the way around. A 115k btu kerosene torpedo on a thermostat kept it comfortable.