So the cover failed the first review because it wasn't sized correctly. I ended up pulling down a free tool [after paying for a month of Adobe PDF creator, which didn't do what I needed] called PrimoPDF. It's Norton approved, and suggested by one of the techs at CreateSpace. And it's free.
So the cover passed the review the second time through, but because the DPI wasn't over 200, they're saying the cover will be blurry in spots. I submitted it for a physical proof anyway, because I need to read through again to check for typos. Yes, a friend pointed out several after I published on Amazon.
So I'm re-doing the cover again:
(1) to raise the DPI level
(2) to do a better job on matching the colors
(3) to re-do the barcode.
Why re-do the barcode you ask? Because if I use my own ISBN, CreateSpace won't distribute to libraries. I must use their ISBN for that capability, and I want that. Contrary to what you might think, libraries buy a lot of books, and if someone checks out my book from the library, they may buy one next time. Plus the CreateSpace ISBN is free. So other than re-doing the cover, it won't cost me anything.
So here are the three new building blocks. I'm posting them in several places, including FaceBook to see what the colors look like. Believe it or not, gimp (the Photoshop-esk tool I use) displays one color while MS Photo editor displays another, and so on.