Monitor Calibration and Photography

My husband got me the Spyder 4 monitor calibrator for Christmas.  I must not have done it correctly the first time I calibrated because there wasn't much change.  I knew from editing and printing pictures that my monitor was too cool.  I just calibrated it tonight and it's a huge difference.  I feel like I need to go back and re-edit a bunch of pictures.  I'm not sure why I didn't do this sooner.

Here are a couple pictures of my youngest sister.  Her Senior Recital is coming up.  :)

This one is my favorite.