I agree with most posts thus far that they all of those are great looking snakes and most likely crazy pastels. The high temperature spike in the "real" incubator could very possibly explain the shortened head formation. (http://www.oocities.org/vermont_herp...y/article2.htm, 7th paragraph).
I am not sure if the spike in temperature would be able to cause the pattern of the animal to change. That would in effect be changing the DNA of the individual. That would be the same as saying someone who wanted their pastels to be brighter could simply incubate at 93 instead of 90. Isn't the pattern of the animal determined by their genetic make-up? I know that temperature during incubation in some reptiles can change gene interaction and influence male/female outcome(crocodillian), but can it really influence the specific patter?