[CupcakeDolly]

The second male looks like the oldest of the bunch, and the fifth looks like the youngest (did I get it right?? Do I get a prize?!)

Like Addy said, the proportions on kids are totally thrown off. Bigger head and eyes, and really skinny limbs. Their features aren't really as defined or detailed as an adults. I wouldn't worry about making them chibi-ish - they basically ARE chibis. Little weirdos.

For older adults, facial hair (for males) and sharper angles are a good indicator. Their eyes get smaller, and everything else gets larger. Even the waaay older ones can stay angular, they just have more wrinkles and such in their face. Basically the older they get, the more detailed their features become.

Child

Adult

Elderly

Couldn't find very many elderly pictures. Nobody likes old people. =/