My immediate instinct is to go "ugh, no", but then weirdly they seem to grow on me. Perhaps its because as other people have said, it's a horribly tacky idea but it seems to work because it's Blackpool. I don't know. They certainly stand out, I'll give them that.
It'll still take a lot more than a new paint job to make The Big One any better though. The trains aren't that great to begin with, and the whole ride has nothing going for it other than size.
Put me firmly under "meh".