@WXM:
Well, I probably was too general. The TNG remasters as well as TOS are great and I can’t find any fault with them. I was actually referring to the following physical media: DVDs on Star Trek DS9 and VOY as well as the BluRay on ENT - those are the ones that suffer quality related issues.
Also I have just tried my hand at new settings for the ENT - I had to admit, on the big screen it looked to artifical so I went back and checked and experimented and came up with a solution that may look more real.
Only goes to show I should probably avoid posting stuff that’s only “half-way-done” and wait until I checked on the big screen.

Anyway, back to work.

EDIT:
And thanks for the link, Tobias Richter is a real artist - saw examples of his work at conventions.