There are many many thousands of fey races. May things may influence their appearance. but something to remeber is that some beings will actually choose how they appear to a certain person based on that person's preconceived notion of what they should look like. So, if you think something look's a certain way, that may just be the way they appear to you, this could help explain some of the confusion around the different groups. Like I said, a lot is semantics.
