Hey, 2eightcustoms, real nice bike, like the paint.
Unfortunately, I'm going to throw in here with JD. One of the handiest things about this forum is the ability of members to spot and diagnose over the 'net, thru the use of detailed pics. We're here to help each other. Please take the observations of a FAA certified A&P seriously, whose job and talent is spotting potential hazards and non-standard/accepted methods of manufacture, which ensure our safety on the most complicated and heavily engineered machines known to man. And, you're getting this scrutiny non-gratis. That said, I'd like to add the following:
1 - The brake stay - looks like a rod, bent like a spoke, threaded through the backing plate like a spoke. This is not a solid mount, with localized stresses, may prematurely wear/oblong the backing plate stay hole, leading to failure. This stay hole is also located such that it's relationship with the axle and the angle of the stay rod increases the tension/compression the rod may receive, by about 50%. The rod also appears to be bent upwards to clear the rear fender. During a hard stop in reverse, say catching yourself rolling backwards at an uphill stop, this rod could buckle/break. Plus, going forward, during a hard stop, the rod may try to flex/straighten, leading to bent fender and undulating brake action.
2 - The rear brake actuating arm and rod - there is a lot of exposed thread on the actuating rod, giving the impression that the brakes are worn to limit. Some cheaper brands of rear brake linings are thinner than stock, and give this appearance even when brand-new. An astute customer would notice this.
3 - The actuating angle of the gear-shift lever - I'm sure folks could adapt to it, but the best place for the rotation axis of foot operated levers is as close to the footpeg as possible, as on custom rear-sets and front-sets.
Your customer is a professional, he will eventually notice these things, he may or may not not voice his opinion now, but could 'grapevine' this in the future. Or worse, SUE you!
Potential customers, and current enthusiasts will be seeing these things in public photography. Nip it in the bud, get a clean reputation started.
Again, we're here to help one another, please take the preceeding as constructive, not condescending. You have excellent build talents, but you cannot be expected to know all the pitfalls. When you succeed, we all succeed...