It's hard to see that you are "catching" this without the title. If you could have grabbed a shot with the 22 actually in the air, and your hands waiting below, it would have been more dramatic. And while lighting is good, the brigher light might be better placed on the 22.
BTW - that's one of my favorite books from my youth.
Fun idea. It would look cool if there was some motion implied - a little blur as the 22 is caught in the hands, A longer exposure with a flash at the end? Not that I've ever done that...
womans hands generally are better photographed with a very soft light and lots of fill, the hard light makes me look at all the skin wrinkles on the left hand rather then the subject of the 22.
It's a bit too static to fully represent the concept of 'catch', which is what you were looking for. If you're going to play on that word you need to make this more dynamic. In the strictest sense, it's not a literal interpretation of the book title, but I guess there's nothing wrong with that (a literal interpretation would have been more interesting however).
That's insane. But if you are sane enough to know that, then it can't be insane. (or something like that). I love that book and I love the way you captured the title.
Great idea. Everything looks good. The only thing I would try different is perhaps to capture the "22" actually falling with the hands beneath about to catch the number; as opposed to the moment right after the hands caught it. The humor of the photo does coincide with the type of humor in the book. Good job.
-Scocchio