Nice accurate work. Here in NZ for stirrups/ties, we have to bend that kind of bar around a 4x diameter former, for "normal" runs of rebar it's 5x. Eg assuming that's 12 mm (#4) bar then you need to bend the bar around a 48mm diameter curve in this instance. The sharp bend significantly weakens the corner of the bar; matters here in NZ because we have a fair whack of earthquakes. Their rules are obviously different; not a biggie just a note. The guy does quality work. Thanks!
Atleast give him some shade to work under. The cheap company should invest in a dedicated stirrups making machine. And train this guy as a machine operator.