This track has IMMENSE potential!
At first I was a bit skeptical about whether this song would have enough twists and changes to keep me interested... Well, positively, it does a have a lot of interesting parts to it. Here's my complete critique: The first thing I noticed I didn't like was 2:38 to 2:51, that should be completely cut out. The effect at 2:51 completes that guitar riff, without that, it sounds horrible. 4:36 is a good riff, but kind of a rough transition. 4:55 is completely bad-ass and an amazing transition. Keeps sounding awesome until 6:00... Again, a gritty transition. Nothing really grabs my attention again until 7:24. 8 minutes of metal is definitely a pretty cool feat! This songs has a lot of sections that are expertly composed. This could easily be my favorite metal song, but there are some things I don't like. Maybe you could try using some panning or some other effect to peak the listeners interest and distinguish or emphasize between certain parts of the song. I know you are completely relying on guitars for this track, but if you look at it purely compositionally, I think adding some other string instruments (like violins) or some type of sound diversity would really enhance the song. Also, it is sludgey... I like the sound of the drums (great drum programming) much more than the tone of the guitar... 4/5 + 8/10. All in all, the majority of the song shows good creative and technical skill. You have strong talent for playing guitar and writing metal! Just keep pushing yourself!
PS. I am a new fan!