In another interesting test from Which Test Won a company tested two graphics with very minor differences. Look at Version A then Version B and guess which one got a 26% lift in free trial sign-ups.
Which did you guess?
If you guessed Version B you would be correct. Many of the commenters felt the reason B outperformed A was due to eye-tracking issues. The downward facing arrows lead the eye to the call to action "Download Now Free" button.
Go on over to Which Test Won to learn more about the test and the results.