Retouching photos the professional way

In the hunt for knowledge i want to ask you guys something.
I've been working on photographs of some products for the company i work for but i am not quet happy with the results:

They seem to black-and-white for me. (wich i did use to get the external lightning out of the photos).

Example 1 is also done by me but if you compare it with example 2 its to colourless. How can i add the right colours to it?

I hope to get some relevant information from you guys, or some tutorials would be great!

Thank you!

Hey SE,

Hmm have you tried playing with the Colour Balance (CTRL + B) or alternatively the following should help you a little:
Auto Levels (SHIFT + CTRL + L)
Auto Contrast (ALT + SHIFT + CTRL + L)
Auto Colour (SHIFT + CTRL + B)

Those above should provide you with a quick fix - but if you want more control you can adjust the image levels (CTRL + L) and take it further from there :)

I hope this helps...

:) thanx for the tip, i already tried working with that.. but almost couldnt get it right.. pretty annoying ;)