Carroll,
As with Peter, i am sometmes amazed with some of your explanations/reports. So many times a learning experience.
I only just came across this discussion, so my reply is actually way late. Retarded maybe? [unsure]
My mother and father were both very artistic and immaginative. I never learned a whole lot from them for various reasons I'm not getting into here. My father was one of the last to perform the work that he did using eye/hand coordination. When i got out of HS and was looking for a job to tide me over for a year before going to college (it sort of was the inconvenience to contend with if i wanted to afford further education), my father wanted me to come to work for him. The major problem for me was that he lived and worked in NYC. His work was 3D displays and models designed to be photographed for various retail businesses. I was, by then, a committed farm kid (by committed, perhaps i should explain before others come up with their own ideas., i mean as related to interested type of commitment :

) I also knew it would be a dead end job for me as i could not see myself to live up to his level of perfectionism.
Eventually, i relented by giving the work a three weeks trial period. After one week, I gave my two weeks notice and went back to fighting flies, mosquitos, extreme summer heat and eventually fighting ice and snow as a followup to the summer problems. At the time, my father was doing a rather large spread for New york Central Railroad. You probably have seen toy train layouts that are somewhat like what he was doing. He had the engines and some of the rail cars on hand to use as models. but he actually constructed his own models to scale. Houses and other buildings were constructed from photographs. He put everything together before doing his own modeling. He figured out the parallax (contortion) of camera lens and built everything according to his calculations. when he had every model constructed and placed on the large table, he then went to his camera and looked thru the lense. He would then take any item that did not look just right and redo/retouch so it would look just right. (Years later, i was asked by a famous photographer friend to build a barbecue the same way. We had to taper each and every brick and mortar joint so it would look like a real barbecue when a closeup picture was taken) He took as much time to retouch each model that did not look just right as it did to build the original layout. In the magazine advertisement, later, the whole thing looked as if the pic had been of the real thing.
One of the processes that I could not wrap my mind around was the colors. He would look at an object for color and then do a match. To me, the match never seemed to fit the color he was matching. He told me he had to adjust the "match" so it would look right thru the camera and with artificial lighting. I could never understand how he could work that out. I guess that was a good reason for me to have gone into heavier outdoor construction and eventually into landscaping. Colors were taken care of where there was no reason for me to even think of controlling.
I'm not really sure if any of this makes sense to anybody, but you have been in the movie biz, so I am sure, if you get to read this, you understand some of the craziness involved in getting things just right.
Tinker