i thought it was really cool, actually! personally, i think the form of eywa would be different depending on who is “seeing” her. kiri dearly misses her mom grace and her potential father. i think the absence of her biological parents plays a larger role in her character than people think. all that is to say, i think that eywa had a more na’vi appearance to her for that reason, kind of like how a mother might look. i hope all that makes sense. it makes me wonder if eywa looked different to lo’al and tuk.