the image i'm getting is at some point the hog's tusks getting caught between a couple of ribs. wonder how THAT'll work out. chances are, not good for the snake
personally, i think the image is fake. the resolution of the snake vs. the resolution of the picture isn't quite the same. the forest and river around it has a higher resolution than the snake itself, from my point of view. the second one looks really out of place. not only because of the size and proportions compared to the previous image, but also the colour. a BLACK snake at that size? either we've come across a new species entirely, or we've come across a faked image. last i saw all the black snakes were relatively small, venomous ones. not giants like this one. then you, as could be expected, have the issue of food. this snake would have to feed very regularly, on relatively small meals, to avoid putting itself in danger. regardless of it's size, i don't think a snake could fit it's jaws around an elephant's skull. hippos are also a big too big. and the rarity of those animals makes them a bad food source to depend on. there just wouldn't be enough of them for it to feed on them on a regular basis. in terms of weight hindering it's movement, i disagree. i think it CAN move on land, just not as fast as most other large snakes. though it would most likely stick to water where it's speed isn't so heavily impaired...