What to improve? Turn your flash off!!!! Flashes aren't flattering to subjects. If you need a flash, I would suggest getting an external flash and bouncing it
You could also open up all the windows to brighten up the room and use ambient light only, or you could try taking the photo outside in the shade (if its too sunny) with a nice background that is not too distracting. Cool eyes! Don't ruin the shot with on-camera flash up close.