I like the gray and nasty look as well. The stormy clouds are awesome as well and very appropriate. For me it almost feels more gritty and realistic which is something that the PT lacks in many areas. Yeah I know its SW and its a fun, fantasy universe but sometimes its good to ground things a bit too - such color changes could do that.
The standard over saturated orange is interesting as well......but it feels so dream-like and cartoony.
Just my 2 cents.