I have five varieties as well.
A solid teal.
A teal with a fluorescent yellow-green mouth, kinda like your third picture.
One like your first picture with a radioactive green mouth, and one with a blue mouth. Both with pronounced white stripes.
And I have a pink one with an ice blue mouth. My Fave!
I'm looking for a solid radioactive, platinum green.
I've seen pictures of chocolate brown with a green mouth, and different dark blue-greys with contrasting mouths.
I really like your collection!!! Does the one in your second picture have the white lines?