One of my aunties tried to explain the correct format for traditional Japanese haiku. I didn't really get it, thusly had no choice but to crank out a bunch more haiku in the same format I learned in school, which is about as close as English comes to Japanese haiku, apparently. It is always 3 lines. The first line often has 5 syllables, the second line 7, and the third line 5 again, for a total of exactly 17 syllables. From what I've read, some more modern English haiku can have 3-5-3, instead of 5-7-5. I just find myself more of a 5-7-5 kind of gal, myself.
Oh, and normally haiku is supposed to allude to seasons, and create contrasting images. Why am I telling you all this? If you couldn't already tell when I make a mistake, why should I help you out?
In honor of my auntie who already knows how it should be done: