First line, "as" should be "has" I believe? I liked how you mention that it isn't just the ghost of your memory, or a shadow of what used to be. Everything you witnessed and heard and saw is present, won't leave you and is harder to even let go. Powerful emotions here.

Very sad and enchanting. There is some tingy feeling of longing and helplessness in those lines that touch deep down. Well done.

Also, I think Its should be It's in the following line

"Its the echoing replica of your voice "