I read previous reviews from other users, and found out that one of the biggest omission was, in their opinions "not enough vampirism" - reflection in the mirror, fangs, drinking blood, transformation into animals. But I think this movie no need all this confetti. In cinematography was a lot of difference in vampire nature and forces. For some obvious reasons the vampirism wasn't just a fairy tale - it interpreted as an illness. Pale skin, dreams looks deadly, absence of appetite. Looks close to many illness symptoms, isn't it? So here we have this type of vampirism - more realistic close to the occurrence of nature. We saw a lot of shots with nature itself, this is another sign.
Young pretty girl was born as a left-handed, also she has curious mind and desires of knowledge, all of these features had been forbidden. Miss Fontaine was strict and religious in that manner where no one could be improper, in her interpretation. She wasn't holy she have been sinner. And when she finally found out all inopropriate evidences. She decided to "protect" Laura in same manner - forbides every unusial behaviors, right till the Carmilla death. But as we all see in last scene - Laura changed forever.
