Texture issue

Hey @Sabina Frolova, 
I had this issue some time ago, I can't remember off the top of my head what the solution was.
Let me take another look and I will get back to you!

Hi Sabina, for some reason, the right eye is backwards (you can see that in Local View).

Until Wayne gives a correct solution, what you can do, is Select the Right Eye, hover over the Y Scale and press the minus key:

@Sabina Frolova
The iris is facing inside the head.
Select the right eye, go to the Object Constraints and on the Copy Rotation constraint, enable invert for the X axis.

Well done team :)