Nothing too gory, really, most of the fish guts and dead animal stuff happens in quick cuts, establishing the chaotic atmosphere of the market place and the harsh conditions of the kid's birth. I am sure you can prolong the nastiness via pausing and slow mo (there was at least one pretty nasty evisceration scene, and gross maggots have turned up a few times). The nastiest shot is probably that poor, emaciated baby writhing around in the slime and fish guts.
There's also a throat cutting scene that's relatively bloody, but not horribly. A lot of the people in the movie are so far very dirty. On the corpse, the movie does a good job of capturing the creepy grey color skin takes on after death.
