That's not where they sit.
The center of it would be the x + width / 2 and y + height / 2.
And you only need to set the svgOrigin one time, not in every tween.
gsap.set(eye1, {
svgOrigin: '65.66 89.79', // does not work
})
You're power3 ease in incorrect, and you don't need to put numbers in a string.
rotateLeft.to(eye1, {
rotation: 180,
duration: 0.75,
ease: 'rough'
})
.to(eye1, {x: -20.19, duration: .25, ease: "power3.in" }, '+=1');