Another thing you do need to keep in mind that humanities programs are being hit the hardest by this recession. Funding has been slashed everywhere and there are far more applications for fewer spots. It's starting to become a trend that you shouldn't expect to get in anywhere for the PhD the first time you apply, especially if you have *some* weaknesses. Use the next year to work on your papers and languages. Even medical and vet school applicants have to apply several times just to get in!
Also, as others have said, don't apply just to the top programs. Those schools are ranked internationally so there are a LOT of international applicants who have strong command of English and are fluent in their native languages, plus one more (thanks American educational system for disappointing us!). And I know that languages are pretty important in art history. I was JUST told by my UG adviser, who just realized this, that it may be in the future that Americans will need to set their sights a bit lower and/or apply for PhD abroad.
Professors are actually quite understanding of the whole situation that their programs have found themselves in. They would want to see you try again so don't consider yourself as a failure.
And, um, check out my signature.