Some of the food bag stuff was changed:
PS2 had monkey eating meat while the PS3 has monkeys eating seed.
There are a few little peculiarities like this. But overall its a good port, having played the Wii version then the PS2 version then the PS3 version, the PS2 version has remained the best version since I played it.
The segment which requires you to draw on a character on a blank page is only fully realised on the PS2 version where your character shows up in the credits.
And the rice paper filter is there but it is less noticeable because of the resolution boost.The progressive scan also makes the colours much more vivid. These two issues combined create a much different experience from the original.
If you want the best experience then the original PS2 version with GSM or PCSX2 is the best way to go.