On Tom's photos: (full size)

In the photo without the block I find my eyes bouncing around all over the place looking for something. I should be focusing on the dock, but somehow it doesn't seem to lock me in. For the one with the block I see the block first, but it seems to help put everything else in place. They're both great photos, but if I was going to hang one of these on the wall at home or work I'd go for the one with the block.

Thank you for uploading these two right behind each other. I don't think I'd have caught on to the effect if they weren't together.