Expectations vs. Reality: The Different Girl

Expectations vs. Reality is a feature here inspired by Small Review that will compare my expectations from a book cover before seeing the summary with the summary itself.
This week, I'm looking at The Different Girl by Gordon Walker.

EXPECTATIONS

There's definitely a robot or cyborg feel to this cover, with the power button and the bolted lettering. That combined with the title makes me think this is about a cyborg girl in a society that's not particularly welcoming of that, so she faces ostracization. Her hair is obviously dyed, so perhaps she's different in other ways, too.

REALITY

Here's what Goodreads has to say:

Four nearly identical girls on a desert island. An unexpected new arrival. A gently warped near future where nothing is quite as it seems.

Veronika. Caroline. Isobel. Eleanor. One blond, one brunette, one redhead, one with hair black as tar. Four otherwise identical girls who spend their days in sync, tasked to learn. But when May, a very different kind of girl—the lone survivor of a recent shipwreck—suddenly and mysteriously arrives on the island, an unsettling mirror is about to be held up to the life the girls have never before questioned.

Okay, so clearly I was quite a ways off, but the actual synopsis sounds great! What were your expectations when you saw the cover? What do you think of the real summary?