Well, first of all, whoever said it was lightning? So why should it look like lightning?
Ghost:
I wan't these movies to feel brand new with nice effects not dark and dull visuals.
Well these movies are never going to look brand new. Ever. Because they were filmed in the 1970s and early 1980s. And sticking CG shots in that don't match either the film stock or photographic style achieves very little. "Dark and dull visuals" indeed.