I've been looking at the
publicity photos for the upcoming Vixen episode (beware minor spoilers at the link), and I've realized there's a very slight continuity issue. Namely, the length of Vixen's hair. Reportedly the
Vixen web series took place somewhere around
Arrow episode 3x16, and since the shows tend to be set in roughly real time, that would mean that 11 months have passed since we saw Mari in the web series. Her hair was quite short then, barely past the nape of her neck in back. Allowing for the curls in the publicity photos, it looks at least a foot longer now. But human hair typically grows at about 6 inches per year, and some sources I checked say that African hair grows the most slowly (though one site said that's largely an illusion due to its tight curls). So her hair would've had to grow at least twice as fast as normal in order to get that long in 11 months.
Now, I can understand the actress not wanting to cut her luxurious locks for a single guest appearance, but it's possible to hide long hair under a short wig (as Jennifer Lien did as Kes in the first two and a half seasons of
Voyager, for instance). And Vixen is pretty consistently depicted as short-haired in the comics. So it's a bit odd that they went for this look.
(Maybe Mari summoned the power of an animal that grows its hair rapidly?)
Another odd thing: The press-release text accompanying the photos bills Megalyn Echikunwoke as "Megalyn E.K." IMDb has that down as her nickname, but she's apparently never been billed that way professionally, and she certainly wasn't in the animated
Vixen. Probably that was just for brevity in the press release and photo captions, but we'll see what credit she uses in the upcoming episode.