Falling
I'm looking for constructive criticism rather than praise for this map. 
It's My first portal map, as you can probably tell. There are pretty obvious texture mishaps that I could not for the life of me figure out how to fix. Not even sure how I got those Portal 2 textures, but they were there and I thought it'd be a refreshing change from the original Portal's textures that I'd seen.
The map itself is extremely easy and pretty short. It doesn't use any new puzzle solving techniques and I just borrowed ideas from the main game as well as other maps. The Portal 2 theme that play near the end of the map is a rip from the trailer courtesy of Cobaiy and of course Valve for the music itself.
Tell me what you like and dislike.
EDIT: I used pakrat to manually insert all the textures that I used. Along with some models and a >WAV that I made of the portal 2 theme that should play near the end. If anything is still messed up, please let me know and be specific so I can find the missing texture or model more easily.
File Name: Packedstalwart.bsp
File Size: 58.67 MiB
Click here to download Falling
A serious textures problem when I started the .bsp from the console. No textures and ERROR everywhere.
Oh, I must have messed something up. I only used the textures that appeared when I typed in "portal 2" in the filter field, and only prefabs that were included in a pack created for the original Portal. I'll see if I can do anything, and thanks for letting me know.
EDIT: Oh, you know what? I think those Portal 2 textures may have installed themselves to my texture collection when I downloaded one of the Portal 2 community maps. May I suggest downloading Reepblue's Portal 2 demo map? That's the only one I can think of that has the materials folder that may hold the Portal 2 textures.
Downloading reepblue's Portal 2 only solved part of my textures issue. There is still a lot of pink checkerboard. Nevertheless, I was able to get through the map.
Nice start.
Thank you for the compliment. It's entirely my fault that you can't see the textures.
EDIT: Should be fixed now, hopefully. Give it another download if you wish.