I seemed to have raised questions in my last post about haiku, so here is clarification (I hope!).
The original 5-7-5 line count is unique to the Japanese language. English haiku usually is short-long-short up to 17 syllables. The important points are that it is nature oriented and a single heightened moment happening in present time. Senryu is the form depicting human nature.
Each word is carefully selected and is not a run-on sentence, nor padded for syllable count.
Anyone really interested may want to read Modern Haiku, Simply Haiku and Shadow Poetry. I'm no expert, just a fan.