Believe me, I wouldn't just ask you for a tutorial on clothes, pretty much anyone I'd ask that question to. It's always difficult to imagine how the clothes would fight on the characters along with adding the extra details to make it believable which is why I struggle at it sometimes and revert to looking at other art forms to help me draw it out.
You see... that's exactly my problem with drawing clothes these days onto people. It's one thing to draw shapes but its another when to draw the details onto them making it just right.