That is a great looking bike! 21/21 looks great with these frames.
There are only about five of the Bratsyle bikes that I like. 75% of their bikes are not my style. What I do appreciate is the fact that tey keep thempractical for the most part. They has turn signals. They have front brakes. They have rear shocks (debatable). Yet they still pull off some amazing builds. I can appreciate that. If your business can create a Worldwide style named after you, thats's history!
As far as the seat goes, I'm going to go the tool leather route. My ladies Mother is a saddlemaker and leather worker. She is going to do my leather work.