I started making UTAUs just last week, and since I watched a tutorial on it I have had some kind of incredible fetish for making OTO files. Repetition and constant testing with .usts mean I'm also extremely good at it. Especially making consonants sound softer.
I've got two UTAUs. The first one I made when I knew squat about the program and the Japanese alphabet, so he's kind of all over the place, but I'm releasing the second one as soon as I finish the .ust for the song he's going to sing.
(Yes I'm a girl, I just like PUTTING MY LIMITS TO THE TEST or something)
If you've got an UTAU without an OTO/only in one style, I can fix those up and add hiragana or romaji compatibility to it.
Also if I'm pimping your UTAU out there is a high chance I'm going to draw character art or fanart for hem because I CAN NEVEREVER STOP DRAWING.