Need advice on zombie+BV build

I wanted to do something a little different so i figured id make something in PoB, there's alot of work to do on it, and to be honest ive never really understood everything about PoB (why it calculates certain dps's, does it calculate per minion or is it all minions that you can have, ect ect) so i wanted some advice on my build, thanks in advance

https://pastebin.com/YeFumPLi

The items have alot of room for improvement but they were just general items, the Es/arm boots and gloves were just what i picked up, not a specific choice that i think is good

there are 7 skill points available before level 90, i just didnt know what to put them into