Posture, yeah, but 1st ed export’s left arm is behind her hip, their heads are different and tilted in different ways, feet/leg placement is different, plus of course, 2nd ed export is wider.
You can check some 1st & 2nd season fantasy characters over there : http://www.epicgenerator.net/index.php/gallery/season-1/season-1-fantasy
http://www.epicgenerator.net/index.php/gallery/season-2/season-2-fantasy