IF it is your toon, use "Showracemenu" command at console ...different eyes that you can adjust lower, adjusting eye brow height can help with "hi foreheads", longer nose, decrease chin length, possibly squarer/lower jaws to give the "toon" a more "round" face rather than that long face look. If it is a Non-Player NPC, Creation Kit or NPC Editor mod. Its a tweaking process, may take you several trys to get the look you want, after that, Granny ...errr, the young Lady will be good to go !!