2.1) INSTALLATION
I recommend not using Nexus Mod Manager. To install AOM without it, simply download part one and then drag and drop the data to your steam/steamapps/common/skyrim folder. Then do the same for part two. 99% of download errors are due to NMM. If you must use NMM, follow the instructions posted below.

STEP 1: Download and install PART 1 of 2: HI REZ TEXTURES or LOW REZ TEXTURES.
STEP 2: Download and install PART 2 of 2: CBBE, UNP or UNP SKINNY.
STEP 3: If you are using NMM. Select the "NO" button when prompted during install. This will allow you to to update normally. (If you select the "YES" button, NMM will uninstall all of the textures from PART 1.)
STEP 4: Make sure that both AOM.esm and AOM.esp are activated in the data files section.

WHEN UPDATING: Uninstall all old AOM files first (especially the ARTOFMAGIC.esp).

UNP OPTIONAL:Witch Elf Armor can be found in the optional files section because it is currently only available for UNP. (Please post images of your witch elf armor in the image section.)