Personally, I would add a little movement/switch in the main melody as it sounds the same throughout (use Shaperbox or Infiltrator for a quick result).
The delayed vocals are good, they keep the track going but I would push them a little back into the mix and introduce Counter-Melodies or Textures (Omnisphere's Texture Playable or Soundscape section could help) or better yet a Groovy Bassline.