I think Adriana can choose, but "knowing" how she is I guess she never refused anything, I mean, she was even satisfied with that shitty 2016 Secret Angels look that yes, she made shine anyway, but she could have requested any other better outfit and she didn't even then with that mess of a costume.
The only 2 times I have seen pictures of her doing fittings for differents outfits from what she ended to use on the runway were in 2008, she had something that was more similar to Maryna's look then hers but I guess they were still building the outfit becuase it didn't look finished or ready, and 2010, with that huge wings that were too big to fit into the bars of the opening choreography so they changed her look and gave a modified version of that outfit, with smaller wings, to Magdalena.