I am going to be accused of hijacking a thread,,,,,,,,,but here goes.
The one single problem with trying to adapt the Artist's scale effect onto a model is that modelers ignore all but their favorite part of the scale effect concept. Scale effect in art means that a Battleship seen very far away is just a slash of gray paint on the painted water. If you consider that this Battleship is 1/4 inch long on the actual painting,,then a 1/4 inch slash of paint on land can be a tank, and a 1/4 slash of paint in the air is a Phantom jet. Scale effect also makes all very distant objects look like an indistinct gray color. Scale effect also "fuzzes" out the shapes.
So, modelers come along and tell us that there is this "chunk of haze" in between us and the object we are modeling,,,,,,,,which is true for a very distant object. Not exactly true for a photo of a car in the driveway or an aircraft on the tarmac. They take a photo and then "tone down" the colors from what you see in that photo,,,,,,,when in realty, if that "chunk of haze" is in our photo, then we wouldn't add to it when doing a model that is *larger than the photo* (working with 8 by 10 as the standard color photo size)
In realty, all that panel line enhancement is to act as a "zoom in" quality when we view a model, because the actual panels fade out of sight as the aircraft gets farther away.
So, a model of a White Phantom that I had Anne take of me as a gate guard,,,,to be "acceptable" as a scale model, "Must" A-have the White tonned down into a Light Gray, *and* B- have the panel lines enhanced to show up more on the model than they do in the photo (or in real life until you get really close up) Never mind that "scale effect" eliminates the differences between an F-4C nose and an F-4E nose as part of the visual effect of "lost detail because of the haze"
to be true to "scale effect",,,,,,all models should be sanded to eliminate distinct part differences between any two, and should all be the same "fuzzy gray" that a distant aircraft seems to be before you use binoculars to see if you are looking at a White airliner or a green camo'd tactical jet. And even the panel lines that we can see where the rudder hinge gap is, should be grayed out. Being able to tell a 3" gun from a 5" inch gun on a scale effect painted Destroyer model shouldn't be possible.
All models would be just "as molded gray" if they were painted at the distance from the eye that artists use for scale effect,,,tanks, planes, ships, everything.
Besides,,,,,,,,the advice of "just paint what you see" doesn't help a new modeler or a modeler with less than about 2 years experience one tiny bit. They haven't been modeling long enough to know what color comes out of which paint jar yet. So "any gray you want" doesn't work as advice for them,,,,,,they need to know who bottles the gray for their UK prop plane, who models the gray for US ships before Pearl Harbor, and who bottles the gray for a USN Phantom in 1968. They very obviously were different colors,,,,,,,and many new modelers don't yet know "what looks right",,,,especially if they are still trying to match box art, and don't know of the thousands of errors that have been made in box art over the years. (Yellow Zeroes and Purple Rufes, anyone?)