I wasn't too sure on the category, since I didn't make this in a tradition 3D program, but it is 3 dimensional, so poo on typical 3D stuff
I pretty much copied Maltaannon's tutorial
for this one, but I changed the texture of the walls to look more like a sewer. And I added some boring music from freeplaymusic, since it felt sort of bla without any
There's a few bugs with this that I haven't figure out how to fix, like the vine has some sharp turns, but the motion path for it is a bézier loop without any sharp turns, so I don't know what's the deal. It may be in the lighting, but I hardly ever use lights, so I haven't figure it out yet. And the reflections of the vine are a little messed up, but it's not a big deal.
Made in After Effects, with a little help in Photoshop to get the texture for the walls.