OK, I've tried again to show the differences:
The eyes are different on all of them.
New Pinkie Pie: body seems a bit lighter and the symbol larger (I can't tell, the symbol is damaged :icon_frown
.
New Sunny Daze: symbol is darker.
New Minty: scarf is darker, and the symbol is more defined.
New Twinkle Twirl: red is darker (on hat and scarf) and symbol is darker.
Kimono: darker body and symbol.
Star Swirl: symbol is darker.
Sweet Breeze: body is lighter and symbol is darker.
Rainbow Dash: scarf is lighter and symbol is darker.
Sky Wishes: green on scarf is darker and symbol is darker and has a purple outline instead of pink.
Fizzy Pop: symbol is darker.
halicabi