Man, the instruments together are all great, if anything could be improved it would be if you made the guitar tones a bit sharper. Apart from that, your vocals are fantastic. Good job dude.

Crit? https://www.ultimate-guitar.com/forum/showthread.php?t=684049
Wow...! That was awessome! I am listening to the other tracks too..but since you asked bout the Darkness, I'll stick to that. .. It was really good! The guitars, drums, vocals everything was perfect. Like someone said, you could've had a better tone but thats your wish really. And at the beginning when the vox come in, you could have just had the plucking and the vox without the guitar fill. Just thought it'd sound much better. Coz the tone of the guitar and the vox isn't jelling too well.
But a very good effort overall!

Crit? https://www.ultimate-guitar.com/forum/showthread.php?t=680220