Is that seat tube angle as steep as it looks?
Why no, it's not. It's 73 degrees....Without the chainstays attached plus the wheels to create the horizontal line, it's pretty impossible to tell what the seat or head angle is from pics. Good question, though!

I actually just had a frame built by another Oregon builder - it would be very cool to see how he put the bike together...
I don't do it a lot, and as you can see from the partial documentation, I tend to focus on the building and forget to capture each step of the process... But from time to time...
Build photos, once you have looked at a few thousand of them, can tell you a lot about the builder.