it is good map! Very good map!

nice job putting white walls at the exit, lol

And better...

Onto test chamber number... 8? What happened to 6 and 7? Anyway, this chamber had some issues, but I'm here to help, so here's some feedback!
The energy ball texture is missing. Actually, there appear to be a lot of missing textures and models throughout your map. Are you sure you've packed everything properly? If you're using custom assets, you have to pack them into your map using a program like VIDE or Pakrat.
This is just regular water. You should use one of the toxic slime textures from Portal 2 for consistency sake.

Looking forward to the next part! Though, where's chamber 6 and 7?

Something about that ball doesn't seem right, and how it ends up in the thing.

Nice map, well made and sufficiently lit. Because there's so much whitespace in the last chamber you don't have to use the moving platform. Thanks for your efforts.

didnt have to use the moveable platform

Water looks slightly different, but I like it.