I listened to "For the Risen Eb", "Minimal Dissident" and "On Wind and Matter" and I can see why these people have made these comments. Your stuff sounds
very interesting, but to the untrained ear, the lack of reverb/depth combined with the somewhat thin synth sounds and synth drums does make the overall piece sound a bit "thin". Combine this with the sequenced-sounding nature of the work (which is to be expected and is fine in this genre), and I can see why people are saying that. They're
wrong, but I can see why they're saying that.
The progressions and parts are
great--don't get me wrong. But there's no depth, so everything sounds rather "two-dimensional". Add some delay and reverb (sparingly, but especially to the voices, guitars and piano) and choose some slightly
less synth-sounding instruments for the guitars, bass and horn-type sounds, and I think you'll add a lot to it.
I would also suggest you change up the drum sounds. They seemed to be the same in all 3 songs. At the very least, beef them up a bit. I'm not sure they work well for "On Wind and Matter". And the guitar's timing could stand to be a bit looser in the beginning on that piece.
Again, the parts are really good, and you have a pretty good mix overall, as far as balancing the instruments with respect to each other. They just need some depth and room to breathe.
Eenywho...that's my opinion. Hope it helps.