On the first Portfolio image that shows up on the Home Page, I have noticed that the the black and white - to color hover feature is broken - and a broken image icon shows up over the image.
So now the image automatically shows up as color (instead of being black and white until you put your mouse over it). So the reveal is not working.
But this is just on that first image. The other three images work fine. They start out as Black and White and turn to color on mouse-over. But it is just the first image that is not working properly.