For the de-blue’d Luke, I’m a bit worried that when a final grade is applied Luke will look too washed out. Maybe it would be worthwhile to do the blue reduction on top of whatever final grade you settle on so that the look can be precisely adjusted.
The amount of blue can easily be tweaked by increasing or decreasing the opacity of the de-blued clips before applying the LUT.
Comparison: http://www.framecompare.com/image-compare/screenshotcomparison/7KZYLNNX
That comparison is showing the issue I feared - overlaying the de-blued Luke is bringing those unwanted green/blue tones back into the rest of the frame.
(Although, I really like the de-blue + LUT)