Here's my overly hyped Portal 2 texture pack. Please note that most of the time spent making it was trying to make the custom models, so the pack isn't very substantive. It still has the important stuff though, I think :)

For all the things that change, go through the attached images, there are descriptions that explain whats going on.

Still working on textures as I think of them, so updates will happen randomly :D

This also includes two mob textures, the enderman and slime, both of which I had posted on their own a while back.

Hope you like it!