User blog comment:VideoGamesLover/Fairy Tail Movie 2?/@comment-26109649-20150517034810/@comment-25111584-20150518013348

Slim things down and change more things in second anime? Nope. Compare this pic with this one. Gray hardly looks muscular in the anime. Also pay attention to Erza, specifically her nose.

This pic makes Gray look like he's a victim of malnutrition.

That's slimming down and weird face with extremely negative effects. That was the first anime.

For the colouring, Misk's comment in the next thread but one is sufficient, I believe.