Here's the beautiful original art for Wonder Woman: The Secret of the Magic Tiara book and record set by the legendary Rich Buckler. About as iconic as it gets, weird capitalization notwithstanding!
If you look close, you can see some very minor tweaks made to Diana's face for the printed version--it seems editors just can't resist fiddling with final art after it comes in, no matter who is doing the work. Man, have I been there, and I'm not Rich Buckler or John Romita!
(h/t: Al Bigley's Big Glee Archive)