first track: dont like the EQ of the kick drum, sounds too muffled, then the farty bass line jsut doesnt sit with it, put some top end back in the kick and a little bite from some distortion and it would sit much better. also after the melody break, it soudns weak when the kick comes back in, turn down the melody during the break, infact a good tip is to slowly turn down the whooe track during the break, then back up as it kicks back in to give it more impact ;) good structure but im still waiting for the main riff?? your main riff sounds liek an intro riff that should build up to a main riff if you know what i mean..

2nd track: wicked speech sample at the start :) this soudns more like it....nice little fills and drops as it builds up, wicked little digeredoo type riff like that alot :) liek this loads more, would probably buy this on vinyl...good work man :)