So, after giving the album a listen through, I have to say that it is overall very, very good. Musicianship is excellent, arrangement is tight, and above all, the mixing and production are better than a lot of mainstream rock releases (I can hear the bass!)
But
This group needs a vocalist. All of the pieces on the record sound like instrumental mixes of songs that originally had vocals. There is a market and place for instrumental progressive metal, but groups like Liquid Tension Experiment and Planet X wrote pieces that had melodies to make up for the lack of a singer. Penumbra was the first that stood out to me as a song in need of a vocal, but others like Alan Smithee's Suicide Note would be improved dramatically. (By the way, the latter is one of the strongest tunes on the album)
I know you've had this released on physical cd, but if you want to get this into a larger audience... get a vocalist.