This is what happens when you're too lazy to color properly. And, yes this is a guy. Anyways,he was also inspired by Madeleine L'Engle, but, once again, he is not any specific angel.
Anyways, in this novel, seraphim are good angels, and nephilim are bad angels.
So now Imma go draw a seraphim and nephilim fighting, and then...
WE EATS IT!