Funny thing about these angels: there was not even a remote trace of Slough life essence put into them. As such, be aware that they are unnatural life, will be targeted by White Giants and other planetary sentinels, as well as avoided by natural life and rejected by the system of nature. They won't need to eat, sleep, grow, evolve, or anything of the sort, but they are as disconnected from the world as light is from matter. Despite Niciel's niceness, her new creations are as alien as elementals and ashlings. They aren't part of the natural hierarchy; they are a hierarchy unto themselves.
Considering that they were crafted of holy power, and 'holy' means separate, this is highly appropriate and probably intentional. I can see some very interesting things arising from this.
On another note, I've compiled a list of gods who have entered the Deepwood. Please correct me if I'm wrong or missed one:
Ull'Yang @Vec
Astarte @Frettzo
Niciel @Scarifar
Toun @Bbeast
Realthos @Legion02
Kyre visited as well.