.-. Lol. All of your Kalos pokes will have the pentagon, that is a way to recognize native pokes and the foreign ones. Any transported poke will not have that mark, unless you manipulate it to fit native standards, then it is some kind of hack, but I don't know too much about that.
Same here. Monsoon Vivillon is one of their different patterns. Polar, sun, jungle, meadow are some of the patterns, meadow is the original pink pattern.