Bobocop:
While some of these production paintings are cool, some remind me how lucky we are that George Lucas wasn't able to to do everything he wanted back in the days of the OT.
You said it. Have you ever seen the early CG tests they did even for Star Wars? Thankfully they weren't good enough so he left it alone then.
I honestly believe Star Wars was more of a fluke than genius, and Empire was great because of other writers and a better director (and a bigger budget). The other four I can take or leave.