I'm interested by your four line format. I thought that Haikus were in a 5 7 5 format, but your 4 line idea allows you other variations on this theme, as the two "orphan" syllables can attach to any of the three 5s, allowing 7 5 5 and 5 5 7 as well as variations on the (5 5 5 2) theme. Or am I just reading them incorrectly?
http://en.wikipedia.org/wiki/Haiku
interesting that this definition also mentions a "cutting word" -I hadn't learned that before.
here are some more haiku threads:
http://www.cellar.org/showthread.php?t=22900
http://www.cellar.org/showthread.php?t=15718
http://www.cellar.org/showthread.php?t=16098