Thank you for the pointers/critiques.
Regarding the martial arts: When Aendri convinced me to join the site, he showed me his most recent character, Asine Im'Inao, whose bio I used as a template in the creation of Sum'Ishi Taikai. In his description of fighting skills, Aendri mentioned that his character had learned Kempo, which is why I looked up specific styles to include in Taikai's profile that fit her personality. I don't mind getting rid of the references, I was simply using them to flesh out my character.
Regarding the name: As Aendri explained, I was simply trying to create a futurey-Japanese name, again using Asine Im'Inao as the template. I used the words for "smooth" and "stone" and gave all the family members names that could be descriptive of the smooth stone, such as red, ocean, and river. I am willing to change the last name to Sumuishi, as Revolver suggested, if the apostrophe is really such a problem.
Regarding the ages: I thought they were clear enough, but I will go back and make them more explicit. I am also, as per Nashoba's suggestion, willing to make the father retired now. I was picturing him as a good medic but not an exceptional soldier who would advance quickly in rank. He's good at staying alive, but I wasn't sure if the SAoY did the 'retire after 20 years' thing that the current US military does, so I assumed since he was still alive and not pregnant, he was still on active duty. Aendri told me that Taikai's parents couldn't be higher than Joto Hei, which is why I didn't promote him any further. And I didn't want any cries of 'favoritism' because her father is a high rank, despite them being in separate fleets.
-ChokolatteJedi
PS, rereading this, I don't want it to seem like I am blaming Aendri for any of the things that you pointed out. He was simply talking through the character creation with me, and so I got his opinion on all the aspects. I am attempting to accurately explain my reasoning to you, to understand the issues, rather than just blindly making changes without understanding your reasoning, leading me to make more mistakes in the future.