Although photo typing is never really accurate, there do apppear to be certain features that are more dominant in some types than others.
For example, I've noticed INTP's have very peculiar and similar eyes / eye stance (like this half tired, somewhat blank and mysterious stare with an ever present mini frown. To be honest its pretty hard to put into words, look at INTP pictures and you'll know! :P ). Not that the same kind of eyes cant be found in other types, or that it would be find with every single INTP, it just seems to be very dominantly present in most INTP's. And that is kind of interesting (although of no academic value whatsoever).