Photos darken when saved to computer

[Slifoxx Profile]

When I save an image that I've worked on, to my computer it darkens, among other things. It changes... a lot. Below is a screen shot of a random photo before saving, and a photo after saving. Please let me know if there's a fix for this.

beforesave.jpg (84.25 KiB) Viewed 2579 times

aftersave.JPG (83.37 KiB) Viewed 2579 times