Your eyes are a beautiful blue, but because you were in a dark room, your pupils dilated wide to allow as much light as possible in them. The flash duration is so short that they didn't have time to close up. The result? You have huge black pupils in this shot, instead of nice blue iris. That is one of your best features, and you've lost most it in this photo because you were in a dim room. Having said that, you could jacked up the ambient light in the room, and if THAT wasn't enough, you could look at bright lights long enough to constrict your pupils, allowing more blue iris to show. Or you could wait until day time and use indirect window light for the portrait, which is also very flattering, as it gives such a soft light....