Quite lovely!

If I could give one piece of criticism, I think you could have maintained the schema of "you" for the second stanza. Like so:

All that's left of you
are blurry images of your smiling face,
fading voices and sounds of your laughter
and a few hallucinating memories.

All that's left is you;
a little flickering spark on my heart
still longing for your presence.

I feel it rhythmically flows better.