Lolita is described in the original novel (which is highly recommended by yours truly) as being "not conventionally attractive" and having a chestnut-coloured bobcut. Hollywood does not agree. They also don't agree that she's more or less pre-pubescent (at least at first), but that had more to do with censorship laws, so I don't blame them for that.
I hope to clean this up and colour it properly someday, though you're all welcome to do so yourselves (with credit, obviously).
D-M