A Cockrum/Byrne-era Phoenix, from a U.K. convention.
A 1963-1969 Marvel Girl costume. Nice looking girl, but as with many of these Marvel Girl costumes, the weakest part is not getting the mask quite right.
Another Ms. Marvel cosplay, a much more accurate costume, by a pretty girl. And a nice pose, that looks like it could be right out of an early X-MEN issue.