First one, I admit, does look green. I figured it was supposed to symbolize her mitochondria taking effect. Remember Melissa's eyes turned green in the opening, and naturally, hers are brown. The second one looks blue to me.
She had green eyes, big and bright, and Melissa's eyes turn green when she transforms into Eve in PE1. I swear. I just fired up PE1 on the PS3 (PSOne classic) and PE2 too and they're green.
OK so her eye color changed, not a big deal, I know at least a dozen people who'd have green eyes one day, then blue the next and back to green by the weekend, it's not uncommon for ones eyes to change color.
I am a dedicated member of the "Walter Sullivan Is Bad-Ass" group!!! I am the true originator of the Cookie Demon theory on the SH2 and 3 boards.