Hi Niikura. I was working on the calligraphy for your tattoo recently and I am posting here two fragments.
Text will be written in two kana styles: 分かち書き (broken writing) and 散らし書き (scattered writing). First one means that there will be an open space between 6 lines of text. Such blank space symbolizes "the void" (空) which is the highest element in Japanese theory of five elements. It also will leave a nice opening for the character 水 that you have already had tattooed.
Second method refers to lines beginning from different heights on the paper. It introduces a lot of rhythm, life and emphasizes emotions. Scattered writing symbolizes natural irregularity of a landscape. This is most likely because first poems in kana were capturing beauty of nature.
I am gonna send you a high res. pictures to your email.
first fragment: 窓辺に一人きり (...) 見つめてる君を(...)硝子越(...)
second fragment: (...)口付けして。。。 ねぇ (...) 泣かないで ここ(...)ずっと(...)