Crystal Rose - ultimate reference guide

Please tell me that Alicorn has not been taken. Because there is a small part that wants to make her my new OC because it is my pen name. However, there is a small part that says no, because I already have an OC called Sonata. Plus, I wouldn't want to steal anyone's OC design.  She's super pretty.
Edit: oh nuts. Oh well, guess I'll just stick to Sonata. Also, if you accept, can you draw my OC as a crystal pony...please.