There's good potential here but I think that the 808 is a little overpowering and almost sounds like it has some phasing issues with the kick? Make sure you tune your kick and 808s to match to avoid that kind of stuff right from the start. Or if its not that and you only used one 808 for the bass and the kick, it might be overrunning into itself, leaving the tail of it to still be playing when the next one hits and almost makes it sound wobbly or unstable. Vocals are clean though, great job eqing them and whatever you did to them, they would really stand out if you calmed that 808 down. Check me out if youd like, big sean type beat here.