Model scale:
X: 0.200
Y: 0.200
Z: 0.200

Left eye iris location:
X: 0.480
Y: 0.000
Z: 0.000

Left eye iris scale:
X: 0.850
Y: 1.000
Z: 1.000

Right eye iris location:
X: -0.200
Y: 0.090
Z: 0.000

Right eye iris scale:
X: 1.000
Y: 0.900
Z: 1.000

I've separated Luigi's hands from his arms object and applied a Subdivision Surface modifier to them. His face, hat, and hair all have a Subdivision Surface modifier as well.