Hello, I need help with this build. Bladefall/Blast

So I am using this build: https://pastebin.com/Qxj5crNk.

I am relatively new to using Path of Building and I have only played a few leagues here an there but, so far, I am doing okay content wise, I can reliably do most red maps that aren't physical reflect or mods like no regeneration. But I noticed my critical strike chance is far, far lower and so is my crit multi (which I am working on soon. I have been grinding some currency so I can upgrade a bit but by no means am I rich yet). I was wondering where I was going wrong in the build tho. This is my current setup: https://pastebin.com/dALvVdhv I know the sixth link will make a difference and so will getting more crit multi on my jewels and amulet, but is there anything else glaringly obvious that I am missing?