The shine is impressive, its not MB shine of course but you can see reflections of the trees, other cars, etc. Some liquid glass or that auto glym stuff should bring out the shine more. Also since they are adding a second clear cloat for all the troubles it will be even more shiny.
And yes you tell them what you want painted. If i didnt tell them i wanted my bumpers painted they would have masked them and just shot the car. But id suggest you remove all the trim yourself so they wont overspray it.
My dads 78 300D is next up for a paint job, but for that one we are removing the bumpers.