Flashed Android N OTA, Can i Restore Back Using TWRP Backup

I have flashed OTA zip of Android N Preview.

So my question is whether i can restore my TWRP Backup of Pure Nexus ROM to get back.

I have backed up the everything from TWRP like

Data
System
System Image
Boot
Vendor
Vendor Image.

So if its possible to restore using TWRP backup of Pure Nexus ROM that i took earlier .

what partitions do i need to restore to get back properly .

Do i need to restore

Boot , System & Data partitions to get back to Pure Nexus ROM or all partitions including System Image, Vendor image