Head mod for Portal 2

I found this mod because I was making a similar one, and it's neat to see someone make this so early into Portal 2's life. Interesting experience

I'm kinda new to this whole modding Portal 2 stuff, where do I put the mod to use it?

I haven't played the unfinished swan to make any comparisons so I will just give you my 2 cents. I like the mechanic of painting the world. It's pretty simple and entertaining. I don't understand why there is a large wall that has to be pushed over. It doesn't seem to have any context at all. My suggestion would be to have it fall as soon as paint hits it otherwise you will have people stuck in the very beginning looking for an exit. Another thing I don't think many will appreciate is falling to their death. I was fairly careful in placing paint wherever I go but I guess I missed a ledge right before the office area. It seems arbitrary to even have death in a game like this but I guess that is just my opinion. You could easily let the player fall to the ground and have them find a staircase back to an earlier place before they fell. Also dying cause my game to crash, I don't know if that applies to everyone else. I think this has potential to be a really interesting mod but I don't think it's fun to paint the world,die, and have to do it all over again.