Yep, your playing rocks as stated before here.
The drums are on their best at the third song, I figure because there is a lot happening with them.
I've noticed that using EZ-drummer, using alot of fills sounds better than leaving it pounding on a single thing. Also, adding cymbals here and there allover makes it less sterile.
I'd heavily EQ them rhythm-guitar lines to take out the boomyness, if you're using any kinda reverb or delay in the rhythmtracks, quit it, dry sounds are easier to mix.
When tracking, the thing that sounds best by itself, like reverb, doesn't necessarily work in the mix at all... too much distortion is bad too.
As a bass-player:hate your sound.
It's kinda clonky and woolly, without the bottom and definition I like..
But that's a matter of taste to a point.
Very prog and dreamtheater-ish stuff you do, try dropping to three chords and plain-simple ROCK once in a while. A sudden, simplicity-driven three-chord-in your face-kinda thing moves the song along amazingly sometimes.