Looking much more balanced now.
Do you think it's reasonable to say that one palette may not adequately adjust to all of these mockups at the same time? People create custom palette's for their projects for a reason - it's best suited to the subject matter at hand.
I'm not trying to say you're doing anything wrong, just making the point that you shouldn't expect perfection but rather a compromise so all mockups here look good, but none great, perhaps.
I assume a guy would want to always make custom adjustments to a palette used for a specific project. If everyone starting using the same palette for their little indy games they'd all look too similar.
Your work creating a base generic palette is highly valuable, because it offers a nice starting point for anyone in need of a custom palette. How does it stack up against Arne's? Just use
his same palette-test image to see.