Great pics.
The paint job on the carriers looks like the outline of a much smaller ship on the side.
looks like a smaller ship
http://www.shipcamouflage.com/usn_cv.htm
I also just noticed they are all painted the same, wonder what the thinking behind that was?
here is Japanese camo:
http://forum.axishistory.com/viewtopic.php?t=131286
here is more. Measure 5, having a bow wave painted on the bow to give impression of speed is interesting.
http://forum.axishistory.com/viewtopic.php?t=131286