Good sir, I do believe I owe you a review.
You start things off pretty nicely with an interesting drum track. Sounds a little chaotic but has enough consistency to move the piece forward, at least for an intro. Drum sounds you're getting are good, they're mixed well for sure. What is the beginning of this piece, 12/8?
The synth you use as the underlying chordal basis for your melodic stuff sounds a little muddy to me, and a tad out of place. Also, while this piece has a main melody that weaves in and out, it doesn't feel coherent to me. Part of a good melodic structure, to me at least, is something that you can hum when you're done. That usually means that it has a repeatable rhythmic element to it. You sort of took the prog-ish route here with your approach to the melody and drums. While that can be impressive for a time, it becomes difficult for the listener after awhile. Also, as an aside, that last synth note at 1:43 sounds way too loud.
I really like the idea of the guitar solo, but the patch used just isn't doing it for me. I've always had this bias against midi guitars though, something about them just feels misplaced. What you have written hear doesn't sound playable, though I don't think you were going for a realistic sound. That said, this section gives piece a little bit of what I think it lacks - an aural break for the listener to recoup. The relentless drum/lead combo you have going on is cool for a little while, but without some kind of relief it becomes a little bit cumbersome. Even still, you have the arps running in the background to give it the running sort of chaotic sense you employ in the beginning of the piece. This adds a little bit of consistency but I think it detracts from the break you expect to hear (it still sounds kind of busy). The strings in the background here are really nice. I think you could do a lot more with this section.
This is an interesting track. There are a few things I think that could use some work. Firstly, I think this thing needs a heavy section that's a little bit more melodic and less chaotic (bring in your main melody and move from off-beat drums to something a little more driving). Don't think of this as something negative, think of it as emphasizing your point to the listener. Additionally, I would nix the guitar patch for something else, but that's personal taste for me.
Sorry for the nitpicks, but I know you like to get specific with your reviews so I thought I'd return with the same attention to detail. This really is a neat piece and it has a lot going for it. You didn't use too many instruments here which helps with mixing clarity, and it helps for each instrument to shine. The mix is good for sure, I don't get the sense that anything is overpowering in the regard to EQ and placement. You also do a great job getting a good drum sound. The problem I have with it is a little more basic and might sound base to you, but when I'm finished I don't have the sense of "man, I want to listen to that again" - it's more the sense of "ah, my ears can rest a little bit now". Intellectually and theoretically I'm interested in this song, but it's a little bit too non-stop melodically and rhythmically to conjure up a high replay value, for me at least. I think that you can keep the spirit of what you're going for here and still accomplish that. For instance, your previous track "Thurm ins_wa_" I find myself going back to and listening to from time to time, and it definitely employs some of the same elements you have here, the difference being you know when to hit the brakes. (Also the consistent bass in that track helps pull it together)
I hope this was at least mildly helpful/coherent, and that it helps you in the future when writing. I know songs aren't supposed to be all about the listener, but these are just some thoughts from the listener's perspective!