WDW's was very different originally, it was much more psychedelic and loaded with black lights. The difference between the 2 Haunted Mansions was like the difference between DL's Submarine ride and WDW's 20,000 Leagues Under the Sea... one was based in reality the other was fantasy, or more being inside the "boundless realm of the supernatural" than an actual house. Today the Florida on has been "downgraded" in my opinion to be more the the DL version, which has less effects than the WDW did originally, but Tokyo Disneyland still has some of the original stuff... like the black lights in some places like the library
this is the WDW Library today
and this is how it looks in Tokyo with the black-lights, and how it originally looked in WDW
and at 2:55 in this video you can see the green lights, smoke machines and monster fingers that used to be on a few of the doors in WDW