I voted for “I like it, but it would be better on a fictional character” but my feelings are more like I love it, and I think the right family/girl could probably pull it off. It’s just a little too over the top for me, but it’s a gorgeous name.
I love it. I’ve thought [name]Aurelia[/name] was a cool name ever since my Latin classes - [name]Aurelia[/name] was a staple character in our textbooks, along with siblings and friends [name]Flavia[/name], [name]Sextus[/name], and [name]Marcus[/name]. Great with [name]Katherine[/name] and [name]Cassandra[/name] - it makes the set as a whole feel more romantic, ethereal, and unusual! Great! Go for it.
I love [name]Aurelia[/name] as well. I definitely think it can work on a child. If you think about it, sound wise, it’s not all that different from [name]Olivia[/name]. It’s just very underused (which is a good thing!). It is more unusual than [name]Katherine[/name] and [name]Cassandra[/name], but I think it compliments them nicely and ties the set together in a very classic way.