What a delightful species, and distinct from the other saucebacks with the evolution of eyes!

What?! A sauceback with eyes?! Shocking.

Can you elaborate on how the eyestrils work? Are the "pupils" the orifice that air comes through?

I'm not sure if the climbing-by-flapping hypothesis can work with this physiological setup. Other than those two things, everything seems sound, by Alpha standards.

I like the texture and shading of the organism, as well as the background.

Saucebacks don't actually breathe through their nostrils, but yes, air enters through the pupil. This was also the case in the ancestor, which already had pinhole eyes.

I'll clarify that, as well as that it can't climb extremely steep inclines like a maniraptor (just higher than normal slopes).