brash_stryker said:

Also, if the art is anything to go by, it's definitely not the same species as in AOTC. It doesn't have the elongated head the AOTC alien has (It is in fact a long cranium, not just a headdress as we see another of the species on Coruscant as well).

Their cranium is a little long but not ridiculous like the headdress. Here's another of her species that also showed up in AOTC:

More depictions:

The one illustration that depicts them with a headdress head I'd mock up to lousy artistic license.