mere chotey se hamza bhai
heartly accept ur greetings and liking detailing on both cars.
your observation about corolla shine fair enough and inshallha
will put more efforts in city paint to reach ur expectations 
just to share my observation about both cars :-
a) corolla paint quality many times better than honda,
its smoother and very less ornage peel as well as harder
than honda paint so can get better detailing results.
b) shine / reflections directly interlink with shade of color. like black
is darkest color so can get max reflections and shine from it
compare to polish metal grey colour
c) corolla having 3 months efforts on her skin where as
honda just couple of days old so inshallha after 3 months
her skin condition will be much improved Inshallha.
my new detailing stuff arriving me by early next week from uk
so stay tune for upcoming detailing outcomes 
again appreciate ur feedback