User blog comment:Thomasfan502/Season 8 Discussion Blog/@comment-24027341-20180316163135/@comment-31892545-20180318010816

I’m so on board with this art style (and the transformation name, if it is correct). My theory with the changing of skin tones is that there may be different artists working on different pieces, and therefore different interpretations of the character exist.

Sailor Moon had so many different artists for in-show scenes switching out on a weekly or even daily basis. That could be what’s occurring here with stock art, and I wouldn’t be surprised. If my hypothesis is correct, as long as a piece looks close enough to the character, the design team could approve it.

My last point is that the series is fifteen years in and we’ve seen 2-3 main stock art styles. With the anniversary drawing near, it might be time for a switch up, but I totally understand people being apprehensive about or not liking it.