I agree there should have been more options but, realistically the only options they can really add now are facial parts (tattoos, scars etc), facial features (nose, eyes, mouth etc) and some new hair styles. Otherwise it's just too much work for them. I meam, a slider to choose your height? In the case of the system they have set up at the moment, this would not be a slider really, it'd be an option of hundreds of pre-made heights that they'd have to make, ensuring that every single piece of equipment isn't clipping etc. SE have better things to work on, but yea, more hairstyles.. even that's a lot of effort since they have to go through every helmet and hat or any head piece in the game and make sure there are no issues.

I got my Zell lookalike character so I'm happy. :P