I still think it's unfair to criticize the pristine ship look. Many of Voyager's beauty shots were of the physical miniature, which couldn't be easily altered. I don't know when it began using cgi ships extensively, though battle damage would still have meant several versions being built with successive decay, which means new renders and effects, which costs more money. The biggest obstacle was UPN wanting episodic rather than serialized format. Small, three story arcs would have helped in some storylines.