Nevah (first horse) represents Time. Her quote is
'Some people Say I never die, I say I have forever to live.'
Story (second horse) represents Judging people, her quote is 'Everyone has a story.' - yes it's short but hey, the picture is what counts ;)
Dakota (third) represents Independence, her quote is 'I look in the mirror and see myself, I look to my side and see no-one.'
Nightshade (fourth) represents Patience. her quote is: 'Me esperan en las sombras, escarlata ojos.' - Meaning 'I wait in the shadows, scarlet eyes.'
If anyone has any representations they'd like me to draw, I'm in need of ideas right now so they'd be welcome :)
I do have a few more but I don't really think they're good enough to share on here :P