It does feel a bit empty. This wouldn't be a problem if there was a contrasting section, but there isn't one. The lack of motion is disconcerting and your chord inversions sonically make the piece confusing harmonically, even if they weren't intentionally static.
Score wise, you should probably think about what rests you're using, when, and how long. There seems to be no real pattern for it as it stands, and the slur from an eighth + rest is really weird. A lot you can do with this one!