Please don't be mad at me, but I would advise you to chose a less unusual name for your child. As one with a very unusual name, I have had many problems in school and with people, not only with chronic mispronunciation but also with kids making fun of my name. My real name is Nebojsa, which in Serbian is pronounced NE-boy-SHA (CApitals INdicate STRESSED SYllables). Usually at best, I have been called "NeBOYsha", and others have called me (in ignorance or to make fun of me): Neboyshka, Nahorsha, Nebula, Nebulish, and perhaps a few other such things. In Grade 5, I started regularly calling myself "Neb", but now wish that I had chosen "Ned" instead, which, though not at all related to "Nebojsa", is at least understandable, needs no explanation and quite frankly, more masculine. I am currently working in the Czech Republic as an English teacher and have been calling myself "Ned", which cuts out all confusion.
I'm certainly not saying one should chose from the "top 10 baby names", that's another extreme. But there are really very many names one can give a girl or a boy that will be nice, interesting, more or less easy to pronounce, etc will not cause confusion and will less easily be subject to derision. Here are some examples of names related to saints: Mary (the name of the Theotokos, can also be rendered as Maria, and not so common today), Michelle (feminine of Michael) John), Bridget, Elizabeth, Patrick, Sean, Ian, Evan (Sean, Ian and and Evan both mean John) Nicole (feminine of Nicholas), Edward (St. Edward the Martyr of England is considered an Orthodox saint), Ivana (slightly ethnic, but clear and pronounceable), Ramona (I think this is the feminine of Ramon/Roman and that this is a saint's name) etc. I could think of more, but no time. You can give your child a saint's name without it being something long, hard or overly unusual (like Charalambos, etc. No offense meant to the good saints, I'm just talking about how this all fits into modern life).
I mean absolutely no offense. Otilia is a nice name in its own right, but I am concerned it may be too much once your daughter goes to school etc.