Paintshop Pro>>Color Balance

Required: PaintShop Pro
Go through this transformation:

step one

Using the color balance is quite easy. All you have to do is go to Layers>>New Adjustment Layer>>Color Balance.

step two

You have to experiment with several colors to which is the right one. You can see a little preview above. In order to get my results I did the following:
Midtones:
-76
-49
10

Shadows:
9
50
48
You press "ok" and you're set. n_n Your picture has better quality.