Hmm, not bad. His voice reminds me a lot of Shagrath at times (which isn't bad). Max is right, the guitars needs more nuts but I think the drums do too. You say the drums are live? They don't sound like it. Why go to all the trouble of recording drums live just to make them sound exactly like a machine? They sound like plastic forks bouncing off a cafeteria table. But this is really my only complaint.
Great performances and the music is really cool and atmospheric. Wish more bands would go for something like that rather than just throwing riffs together and calling it a song. And Skylab is a great name as well... don't ever change it!
Good shit man, keep it up!
Edit: Everything you're saying about using amps for a more up front sound and stuff is great. This makes me even more interested! I think some big fat guitars and a thunderous drum tone would make this shit sound significantly better than it already does.