Well, it's a low budget, small scale movie and they have deliberately stayed away from comic book accurate costumes, in favor of everyday clothes.
But,
* John Wick director Chad Stahelski is directing some action sequences (who is also doing the same thing for Black Widow, I bet people are interested in BW movie, so why not this too ?)
* Matthew Libatique is the Cinematographer for this movie, he was Oscar-nominated for Black Swan, and was cinematographer for Iron Man, Iron Man 2, and Venom.
* Visual effects coordinator Aaron Cornwall who did vfx for Aquaman is the special effects coordinator for Birds Of Prey. (also worked on Ant-Man and the Wasp.)
* Daniel Pemberton is the music composer for BoP, who worked on movies like Spider-Man: Into the Spider-Verse, King Arthur: Legend of the Sword.
* WETA Digital is doing vfx effects for some scenes of the movie.
* Script is by Christina Hodson, who wrote script for Bumblebee, and BOP test screening reports have been positive so far.
So, not bad , Eh ? Maybe it will be entertaining little movie ?