Of all the Hoenn Pokémon, Milotic is the one I believe is most worthy of a Mega Evolution. After all, it is a counterpart of sorts to Gyarados, plus the face of the contest mechanic. God, it'd be cool to have fun side modes like those again.
One thing I wanted to do for Mega Milotic was give it more colour, hence the purple and gold mixed in. The prism scale on it's chest was a last minute detail, but I think it's a nice little detail.
by AsterMachina