I agree that the elves look very 'heavy' as someone said before. Most faces (at least for male characters) look very... extreme.
I would be grateful for more options, especially more androgynous faces or at least some that are simply less extreme.

Would also love to see scars. Most companions have them, why can't we? I dream of being able to pick a tag for scars as well, which could trigger conversations such as 'How did you get that scar?' but I know, that's only a dream.

Adornments/accessories would also be nice and as was mention frequently, heterochromia would be lovely.

Sliders would be ideal, but I think more options in general is a must. I feel like my current character is 'the best he can be', given the limited options, but not what I want him to be.