To the best of my knowledge, a traditional Japanese haiku is a three-line poem with seventeen syllables, written in a 5/7/5 syllable count. Often focusing on images from nature,emphasizing simplicity, intensity, and directness of expression.
Haiku also were adapted into the other language forms such as English, Thai, etc. as a short poem of three lines,respectively five, seven and five and total of seventeen syllables. However, I'm not writing any Haiku in Japanese as I don't know the language.
Back to my old school days when I studied at Thammasat University, one of Thai famous poets,Pojana Jantarasanti, gave me his book, "Klui Maipai", Japanese HAIKU translated into Thai by him as I was his classmate in "Creative Writing" course class.This was the first time I read Haiku poem in Thai language form and inspired me to read the other Haiku in Thai and English.
The first Haiku I wrote in the year 2014, was in Thai Language and later, in English like this one. ( Also photo by me)
(Sources: poetic.org/ Geoffreylandis.com)