I've been looking at all sorts in ANH. That shot above is an abomination - the walls are almost bright cyan, compared to almost grey later - makes me think all they did was make sure C3PO was gold and screw everything else. Later on, Obi-Wan has orange lips. Then during the battle, Wedge shoots orange frickin' lasers! Then there's all the lasers that Lowry picked out as noise and desaturated...In other words, don't hold your breath
DE