This is the bracket I was reffering too.
You will also see the red cable (assuming this is battery +) looks rather loose in the hold clamps, this will chaff through eventually and earth out, it will take a long time and it will be long gone from your bosses possesion, but still does not make it ok.
And the cable ties on brake pipes will either wear through pipe (unlikely) or they will wear through and what looks to be your fuel line will hang down.
Also the fuel line should be metal tube as much as possable.
Anyway, it is your build and if you believe it or not will have your name attached to it.
When your boss sells it, and if it is involved in a fatality then investigated and found to be poor quality build, I am affraid the buck will stop with you.
As others have said, if it was you and you only driving it, then make it as safe or dodgy (that Ausie phrase again
) as you feel comfortable with, but it is being built to be sold on.