I actually mess with the skin tones in Part VI, given Part V made them all pale as a ghost (despite Part V being my favourite part). But yeah, that's probably the only thing good about Part VI's designs. I think TMS made the right call in making Part V's designs the default of the modern era (although I think they use a combination of Part IV and V for Fujiko and a combination of Part V and Part VI for Zenigata).
It would fit so well if Heiwa ends up making a Koike-inspired Panchiko machine, as Koike's designs are way better, high-octane and more fitting as a whole to the manga as evil and gambling go together

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Also I'm really hoping the Immortal Bloodline releases tomorrow because that "Release date coming soon" icon is still there when I go over to Prime and it concerns me. I really can't wait to watch this movie again.