The major attraction for me in terms of E: D's visual style, is the relative realism.
I have Star Citizen for all the hollywood style, *bling*bling* colored stuff.
If anything I want to see a stronger contrast between bright and dark. (Like space photos, where the dark side of an asteroid/comet is pitch black)
Speaking of the X-series and complete darkness. There was a system in X3:TC that was pitch black, no visible stars, no visible space dust....and as a result it was the most scary and moody place in the entire game.
(I'm not saying I want every system to be like that, it's just an example of something different)