retouch rollover

photo by - Andrey Razoomovsky
retouch by - me (Kristina Starykh)

This is first time when i posting my retouch rollover.
I'm facing with one big problem during retouching pictures - this is color correction. Now im reading margulis LAB, this is great book but it dont really helps in my problem. I would be happy if you can provide me with some helpfull info abt color correcting ( books, youtube movies, etc).