The concept is fantastic and done well. I liked both your midway and the finished piece for different reasons. I think both pieces stand alone as independent art work from each other and offer shifts in perspective for isolation.
In the midway its obvious from the lighting and position of the tablet and the shadows in the background that shes introverted and staying at an arms length so to speak completely in her own world.
In the final piece the coloring and lighting gives everything more of a sense of balance likes she is right there next to them but that the focal point of isolation seems to shift as if there is more of an implied emotional wall you can sense and you can feel like shes outside looking in and the tablet becomes less a focus of her isolation.
Both are relatable.
Well done.