Those really are amazing!
I remember how bummed the lizardman community was to see dark elf cold ones that looked way better than the second version of our own saurus cav.
However, the one time I played as a DE player in a General's Tournament, the DE COK's went stupid on the first turn and died soon after, just like my own saurus cav!
I think one of my first threads on the site here was of my saurus cavalry that got a silver demon in 2007. Those were the old saurus cavalry that came out the '03 or '04.
These minis have so much fantastic conversion, you kinda forget that the painting is wonderful also. The flavor du jour these days is for muted colors, and these are examples of that muted style done so well. It is tricky with the lizardmen, since they tend to scream out for the brighter tones.
My own army is more on the brighter side. I will be posting pictures of my skink/kroxigor units soon, and they are not very muted.
There is a very nice touch on the weapons this person did that I like a lot. It reminds me of a picture of Kroak in the 4th edition lizard book. Some parts of the death mask had a similar decoration. I was thinking of sculpting that image, and seeing these fantastic conversions inspires me that much more!