Your eyes are beautiful lol
He think you are beautiful.
It could mean he's into you, but it could just mean that you have nice eyes, like a pretty color lol. If you're into him I'd certainly pursue the possibility though
He's giving a random compliment and searching for a favorable response to see how he should further pursue you. There's nothing special about your or anyone's eyes. unless you have naturally purple eyes, they aren't unique.
It means that he thinks you have beautiful eyes, I'm sure.