As you can see the arms are in special pose, however I looked through all the items and none of them added the arms. I assumed it would be with the long sleeves coving up the standard HA hands, but its not...

I am very confused, what item gives you the posed arms?

The sleeves are transformable into the posed ones, i.e. [item=Delish Vir Sleeves (Base 1)]

Oh that makes sense, thank you so much!