I'm not sure what I think about the hi-hat sound at the start, but it's ok.
I like the sweeping filter that starts at 0:20. I think there should be more quiet yet still noticable quick drums and sweeps and sound effects all around to make it sound less loop-y. A bit of panning variation wouldn't hurt either.
I like your basses, they are very punchy and deep. Overall your sound designs is very nice. Your mix is very clean too, although you should turn the overall level down a bit.
The main problem is variation. I think a lot of small, yet noticable additions here and there like I mentioned before would really add a touch to the song. 8 minutes of basically the same looping bass with an ethnic instrument loop filtering in and long sweeps is kinda tedious. This would work quite well as a background song for a videogame or something though, I'll give you that 100%.
Overall, really nice! 4.5/5 :)