Pterano looks pretty good in the first image. His fingers, perhaps, are somewhat oversized, and I think his eye ought to be a little lower down. (There should just be a little sliver of brown between the lower part of his eye and the horizontal part of his beak.) Other than that, it’s a really good profile view of him. I particularly like the look of his head, neck, and wing.
The moon, I have to say, looks a little funny (too much color contrast, perhaps). I think the image would look just as good, if not better, with just the Stone of Cold Fire in the sky.
Personally, I like the rocks, though they might look better with a blue-gray tone, given the nighttime setting of the image. (Pterano is brownish under normal light, but at night he appears blue, as he does here. I think it should be similar with the brown rock.)
Colored picture of Pterano and Ada's father:
Wow, even without the scar, Ada’s dad is one scary-looking flyer! :blink: In fact, I don’t know if he even needs the scar; his eyes are frightening enough.

(And I like that you kept the hooked beak.

) He’s also very well-drawn overall, though his right leg and wing seem to be missing. Also, in my humble opinion, you should change the little tear in his wing to be more of a vertical notch in future renditions of him. (Right now it looks sort of unrealistic, like ripped paper; a pterosaur’s wing would not tear that way.)
Pterano looks a little creeped out himself. But if “dumbfounded” was the look you were going for, I don’t think you did so bad.
The rock in that image looks really good, by the way. The sky’s not bad either (though it looks sort of like there’s a second, smaller, dimmer source of light to the right of the sun).