The character development is a bit limited. Andrew is grieving and desperate, but not much else is revealed about his personality. Elisa and Anna could be more fully realized characters too. With a bit more character development and descriptive details, the story could be even more immersive.
But it has a creative premise and an emotional core.
Andrew was the main character, and his character was well described as a devastated and angry young man - whose loved ones were all dead, and he was alone in this world and felt miserable. The only thing that could make life worth living for him was - his love for Elisa (a coworker).
I wanted to focus on the action, dialogue and narration of how his beloved dead twin sister Anna - was trying to make contact with him. And the dynamics of how he contemplated between the love for his DEAD twin sister, and his love for a LIVING Elisa. I could have delved deeper, but I had to edit it, so the story could stay below 1500 words - for the sake of readers and curators time. Thanks for commenting.