Those first two you posted are cool...not necessarily because of the color, but because of the enlarged white (?) crest scales. That last one you posted is most certainly a fire morph, so I guess you could call it a green fire.
To be honest, all of your photos have a green hue to them, though, so it's tough to get an idea of what the true color of the dorsal pattern is. I'm sure the animals have some olive coloration, but it looks amplified in those photos...particularly in areas that shouldn't be green.
As for the $1,500 green ones that were mentioned earlier, I'm not particularly sure why they claim those to be so rare...or even that desirable. They're nice, but not $1,500 nice. If they came in neon green, that would be a different story. 
I think the most desireable Cresteds right now are high contrast harlequins/partial pinstripes with the following colors...black/orange, red/orange, orange/cream (creamsicle). Marbles are another hot one that we're going to start hearing more about.
That's my .02
-Anthony
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Anthony Caponetto
www.ACreptiles.com