Posts from RTF is a global modification that replaces all towns in the game. Auto-translated

Are you applying the texture of one effect to the model of another? That looks great.
And I guess it's not a problem if the exhale is short; you could probably make a corresponding ability for it.

actually, you're right, that breath attack affected two squares, while this one will be perfect for a chain attack.

Added 1 hour 18 minutes ago
the dragons will be gray (alabaster), white, and silver; I won't be able to add clouds on their wings.

Gray, white, and silver – are these names or texture colors? – A white dragon is simply perceived as the opposite of a black dragon, and therefore should relate to light rather than air.
Perhaps we could use adjectives like: storm, thunder, or celestial. Or, Dragons of Ilat (the name structure is similar to Dragons of Arkat), Air Dragons, or Wind Dragons.
P.S.: "Celestial Dragon" probably won't work – it echoes "Celestial Warriors" (sky dwellers), which are units of Elrath.

The three basic models are ready; all that's left is to add the horns.

and indeed - the overall style is not consistent
I already suggested abandoning the red color - I will suggest it again, the alt-gray can be set to the one that will have gray tones (closer to black), and the grade can be made in blue tones

Interesting color scheme:), the "metallic" effect on a living creature looks a bit unusual - it turned out to be something like a Steel Dragon.
Overall, I like it, but maybe the eyes should be recolored to a mix of green and blue, ranging from the "Cyan" color (R=0; G=255; B=255) and moving towards reducing the green.
P.S. What if we try playing with the transparency of the wing textures - leave the membrane in the area where it attaches to the frame opaque and gradually reduce the alpha towards the end of the wing - in a gray version, this might give the effect of clouds (but the shine on such wings will have to be removed, otherwise we'll get the "plastic bag" effect that I had in the early versions of the golden dragons). And here, of course, we could add lightning (the game has an effect of lightning under the wings of a phoenix - it's not clear how it will look on the model of a green dragon - maybe it will look bad, or maybe it will look good), you can also try various effects related to smoke (like on the Necrodrakes and some buildings - spreading outwards). You can also try attaching something from the storm summoned by the Thunderlords.

as an alternative, one could recall the thunderbird that Craig Hack defeated in Heroes 6
The models are very well made, I like them.