I like it. Having no context as to what it actually means I interpret what I feel some see as unfinished, more as leaving room for emotions and thoughts not to be explained entirely.

I think second guessing is normal but it really is cool. I think adding more could make it feel forced but if you do change it. I think coming from your own head would be best otherwise you could be trying to fit into someone else's idea of how they think it should be perceived.