Morphs of adopted cresties?
 

Hi,
I just adopted 4 crested geckos today from two different sources. Can I have some input on what morphs they are? I can try to distinguish them myself but I'd have more faith in the experts.

Youngest:
http://s11.postimg.org/pbedffgnn/P1010375.jpg

Second Youngest:
http://s27.postimg.org/ajam8r99v/P1010383.jpg

Adult 1 (Male):
http://s12.postimg.org/atjncf3y5/P1010378.jpg

Adult 2 (Male):
http://s21.postimg.org/ceidqp3l3/P1010370.jpg

Thanks!

That first one is very interesting! Very cute. I'm not sure what he should be called, Brindle? Tiger? Or maybe Harlequin? Second one is a Flame. Third one is interesting too. Not sure if he should be called a Flame or maybe a Brindle, I can't tell if he has enough pattern to be called a Harlequin. The fourth one is another Flame.