Back to your question as to why I like these particular examples. The red axanthic has great coloration, a nice blushed black back, nice uniform doughnut pattern 1/2-2/3 of the way down with the doughnuts then mashing up into each other, nice smudging within the doughnuts(not too much), and though you can't see it, a crazy belly pattern. The broken pattern at the base of the head is also trademark of het reds/red axanthics.
As for the pastel butter, the white combined with flash really washed him out, but this guy is really yellow. His head is very faded, and the blushing is pretty intense. I like how the pattern bleeds into the white 2/3 the way down. I also love the irregular, mashed up alien heads. The more I look at BEL stuff, the less I like uniformity of pattern.
And with the g-stripe, it's pretty obvious. Full bright stripe, nicely balanced on the spine, dark outline of the stripe, and super reduced sides.
Even with just these 3 examples, I'm all over the map. I like the uniformity and perfectness of the g-stripe as much as I like the irregularity of the pastel butter.