I don't know how you saved this image, but the original was much better. The original is even better quality than your edited version.
That is the original image.
LOL, it's ok. I sort of ordered it wrong. It should have been Before and then After, but I have it posted After then Before. haha. It kind of throws people off.
Anyways. Yeah, Nouman, my edits are about the same as the one you then posted. This image didn't actually need too much touching up. I must say, I do like the way that the saturation increase works. The variety captures the eye. However, because it was turned up so much, I can't say it's particularly realistic. If a customer goes in looking for that guitar, it would be a much more dull color in person. lol. Here's a couple edits I did. The second one I was just messing with. Nothing HUGE or anything, just the simplest gradient. Also, the original is actually quite fine as well.
BEFORE:
AFTER 1:
AFTER 2:
But about the first image I had done. The only real thing that needed to change was the histogram. It's a simple change really in photoshop. Just Image>Adjustments>Levels... Then mess with the settings until you get it right. It just realigns the colors that are in the image. The original image actually lacked some red saturation. By messing with the levels, you can get rid of the shady overcast in the picture. That was about all I did. It just cleans it up and can get rid of nasty light burns sometimes as well. It's good tool.