What's the secret behind Colour Correction in Gmod films?

[Havoc Ryder]

I have Sony Vegas 9 pro, which has a colour correction feature which i could use, but i'm never sure if I'm doing it correctly. Am i supposed to match the colour of the scene? EG If it's in a desert make it slightly orange/yellow?

Also after a while of messing about with the colours i start to forget what looks normal so i don't know if I'm over-doing it or not.

Any tips?

Here's one from a WIP, is it any good?

[IMG]http://i54.tinypic.com/sz94ph.jpg[/IMG]
[IMG]http://i55.tinypic.com/29z6byu.jpg[/IMG]

I really wasn't sure what to do with this scene, so i made it kinda blue to match the sky.

Also yes, I am British, i spell it 'Colour'. And sorry if this is in the wrong section but I'm sure other people could get help and advice from this thread too.

[editline]07:44PM[/editline]

Actually looking at it now that's ALOT of blue.

[jmanbag]

Yeah that is alot of blue, just try messing around with your own settings until the colour compliments the scene.

[MaxOfS2D]

Well, one thing that is very important is bloom.

Actually, it's technically not bloom, but a very subtle glow helps to wash off the "video game engine" feeling.

The secret behind color correction is to make people forget what you filmed your stuff with