my first witch build

hello everyone,

i'm trying to make my own witch build and need some advise for improvement.

i tried to reach the following goals:
1. necro
2. spellslinger crit VD
3. max block without glancing blows
4. high max res, aegis aurora/ phönix, melding of the flesh, purity aura
5. high armour, determination and molten shell

https://pastebin.com/QD0DUMU1

my problem is i struggle with attributes and resist in my current build planning.
i'm looking for a more optimized passiv tree routing.
maybe switch crit VD for EO VD, to safe a lot of crit note passives?
if possible i don't want to spend 100ex or more on this build.

for any help i would be very grateful