Not a bad little brain teaser, and consistent with other IQ tests I've seen in the past.
A nice little add-on at the end would be to indicate how to test is actually scored. What did I get points taken off for? I'd like to learn and grow, after all, and while the IQ portion can only be taken once, the puzzle potion can be learned and potentially memorized for later use. Besides, there'd be no harm done as it's only a game.
...isn't it?