You asked for some links. Most things are learned by trial and error. There are some decent tutorials on this site. Some priciples in other tutorials can also be helpful, just photoshop tutorials.

As for telling you what you have done wrong...don't ask for reputation points. Just step up and earn them.

PLZ GIVE LINKS WITH GOOD TUTORIALS.TAKE LOOK AT MY ALBUMS AND TEL ME WHEN I DID SOMETHING WRONG AND HEKP ME PLZ .ADD TO MY REPUTATION.PLEAZE