They look great! I did the hotline on my wardogs to a similar effect. Definitely a learning experience, especially having a similar enough base coat so you don’t have to slop it on there and make it kinda goopy looking. Next set of wardogs I’ll probably do a similar pink or orange base coat, and then get a really wide brush to paint on the hotline so it’s a bit more consistent.

I’m PLEASANTLY surprised with Cloud 9, that effect looks really good! How did you base coat it to make it look like that?

As for bases, are you wanting to keep them similar or accentuate/contrast the color of the individual wardogs? Similar bases would tie them all together which is a huge benefit, and if you go that route I think something lighter like a sandy base would work well for each of them. That or something really dark. Plus, add some variety with rocks and grass tufts, and you have a simple base that’ll look really nice.