Thanks, all!
One interesting thing about Irregular is the number of variants. The range looks, at first glance, to have relatively few models of each type. But each number seems, in many or most cases, to have numerous variants - as with the club-wielding types above.
I certainly found these Irregular miniatures very easy and "sympathetic" to paint. They made me want to get more (and so I shall, alas ...).
Jaganath, I did the Dagonites using your suggesting of an initial Coeliac Greenshade (or whatever it's called) wash. I was pleased with how it turned out, so it might well be a solution for your snake-people.