Clashing Graphics

[Evil Yoshi Toes]

That's true but I guess it gets away with it to me because the game is set in that alternate world where everything is made of simple polygons. When I look at the characters who originate in that dimension they all fit in well, just Mario, Peach, Bowser and Luigi look out of place as they are meant to. In the game's intro when they're still in their own world they fit well to me.
I guess whether or not choosing having the main quartet clash was a good decision is a different matter, but it was at least deliberate.