So I listened to the demo and apart from the drum issues everybody pointed I can say that the songs are not as good as on the first demo, this time it feels like a collection of riffs that sometimes don't blend together, also the songs here are less "memorable"? than on the first demo (I still remember hearing the first riff from gravefeast and since then I remember exactly how the riff goes/sounds)
The ideas are there but you guys have to work more on arrangements rather than put riff after riff, and yes it's just a demo to show how the band sounds but I think you sounded better on the first demo and you have to work more on how you want to present your band.
I mean I like the songs but you showed more "level" on the first demo...