Image with mouse movement

[EhOpranD]

I’m creating the home menu and would like to add a small animation to the logo.
I want the eye ball to follow the mouse movement

I would also like the msm to have a limit on movement, not leaving the circle’s reaction

Menu:

Logo:

Look at:

Limit:

I am grateful in advance for your help

[EhOpranD]

I managed to make the movement of the ball follow the movement of the mouse, but I cannot create a “limit”

this is the code:

This is the error:

Does anyone know how I can resolve this?