Yeah, well, I am looking at your mortises and they look very, very well done. Really looks good. Did you laminate the beam, too? (It looks laminated to me).
I would really like to do something along those lines to build a gazebo-like structure in the yard, but it won't be true mortise and tenon, it'll be that fake kind that looks like it. You know, lag bolt and PT.
I want a hot tub out there something fierce, but I won't set it out in the Southern sun, no sir. That sun is amazing. It will destroy a 30-year shingle in 15. That's why my house is metal roofed now.