well, other than being shriveled up (and being slightly folded inwards) there's nothing else I can pick out. I don't think it's a watering issue cause the embryotic leaves on them are A-OK, and I've been giving the two retard-seedlings the same amount of water as the other two regular ones.
Here's an overhead picture of it (there're only four leaves...two embryotic and two that are secondary leaves. It looks like there're more because the two secondary leaves are creased in the middle and are wrinkly. Maybe I should put an iron to them :P)
~007~