Oh god sorry, i completely forgot!!
I don't think i'm going to change the eye like that, but i do think that i will make his pupils bigger. Dbz characters don't really have round eyes, and the only time that goku has really round eyes is when he has a relaxed facial expression. In SSJ it was only after training in the hyperbolic time chamber goku was able to comfortable remain SSJ. And when he was relaxed the eyes were larger in height and rounder than the one you suggested.
Generally SSJ goku's eyes are almost parallel between the bottom of the eyebrow and the bottom of the eye.
But thank you for the input