Critique color balance

I shot a wedding and I really love a bunch of these but the background kind of appears too warm or is it just me?

IMAGE LINK: http://www.flickr.com …icholascaputo/5​676132354/

It looks warm to me too. Since you were there and known how the scene looked through your eyes, you are the best judge.

The light source looks like it is at a different white balance. I suggest maybe matching the environment white balance and merging the 2 pictures so that both are correct.

Sorry, but how would I do that in cs5?

You could save 2 jpg based on the raw, 1 set up for the person, and one for the background. Bring them both into photoshop. Put one on top of the other (copy + paste or whatever you choose) and use the layer mask. Layer mask is the white circle in the grey square. Paint the top layer black to erase it, and white to keep it.