Mike Verta has responded to my question on the greenish walls, and accuracy of the eBay print scans. His answer is insightful as always. For the full response, please visit starwarslegacy.com.

Here are a few quotes:

“This is not correct and the walls are not green. They vary in how much blue they have in them from panel to panel, but the paint for the Death Star set always biases towards a blue and not a green. There are a number of issues with this particular image [my Han Solo regrade, based on the eBay scan], from an artificial red/pink in the highlights to a curious skin tone. BUT - and this cannot be stated loudly or enough - this is being viewed on varying web browsers, no two of which interpret colors exactly the same way, in sRGB space which cannot represent what the film looks like in any case.”

“Looking at the album of images [http://imgur.com/a/2FSs1], I’d say this is pretty classic Tech IB, however. But the best way to describe the “accurate” color of Star Wars would be an amalgum of Tech and Kodak (which is precisely why I’ve done it that way). The blend isn’t linear, which also complicates the issue.”