I like how Pterano's head and neck turned out in the first image, but his eyes, in my opinion, aren't nearly up to your usual level of excellency of character expressions. Both his eyebrows and the eyes themselves are almost triangular at the top, and personally I find his expression hard to read. There is also an issue with Pterano's legs in that image: his left leg has a very pronounced ankle joint, but his right leg does not.
Tarren didn't come out nearly as "husky" as I wanted to and Ptyra's foot/feet look strange (no surprise). I also tried to draw Tarren so it looked like he hasn't disappeared behind Ptyra, as I have a habit of doing.
Well, considering that Ptyra is in front of Tarran/Tarren (you used both spellings in your last post; which is correct?

), it's kind of hard to see what his body looks like, even though he hasn't “disappeared” behind her either. As for Ptyra's feet, the right heel
is rather oddly shaped, but the toes actually aren't so bad (making the toe tips pointed, with spacing between them, is the way to go, as far as I am concerned). And Pterano turned out really good, I think.

The expressions of all the characters are also outstanding.

By the way, whose wingtip is that trailing on the ground between Ptyra's leg and Tarran's foot? :huh I'm assuming it's Tarran's, because if it were Ptyra's, then Tarran's leg shouldn't be visible in front of it. However, if that's the case, then the trailing edge of his wing must be curled upward for both sides of the membrane to be visible, and from the position of his left foot, he should be stepping on it. :blink:
You'd probably want to change both Ptyra and Tarran's right hands. One of Tarran's fingers is too narrow at the base, two look to be splayed at an odd angle, and his hand is indistinct from the forearm. Ptyra's leftmost finger should be her third (corresponding to the middle finger in humans) and like Tarran there doesn't seem to be much “hand” behind her fingers. (For the record, both characters' left hands look good.

) I'd also suggest making the crease in Ptyra's left elbow shorter; less pronounced.