Hi, I like this map

i like it

Extra help here...

Soundscapes can be done with an env_soundscape. I recommend something like TestChamber_Destruction.Intro_* for overgrown/decayed maps. My other recommendation is to use a skybox texture instead of a light texture:

1) Use tools/toolsskybox in the ceilings instead of the light texture
2) In Map Properties, set the skybox texture to sky_white .
3) Add a light_environment and adjust the settings accordingly (try experimenting with it a little).

Personally, its too dark in the first room. Also, you will want to use proper soundscape in the test chamber.

im need your tutorial!

Aesthetically it's not bad. Some of the foliage is a bit dark. You might want to make sure it's positioned correctly or it will be too dark (red orientation line facing out from the wall). You might want to avoid vertex texture. It gets brighter when the player gets close to a light source. It just looks a bit weird when it changes its lighting info when you move. As for lighting, if you are using env_projectedtexture in the open ceiling, you might want to set it to cast shadows. The rest had a good amount of lighting. One thing that most people might not have noticed, was the angled ceiling tiles. The sides have texture that stays with the x,y,z grid. Make sure you set Hammer to "Texture Lock". You'll find this helpful in the future. Other than that, I'd say you did okay for your first Hammer map.