Originally, her armor was done by TWG and was based off of the "Winged Dragon of Ra" card from Yu-Gi-Oh. Later on, TWG told me I could change the armor so long as it contained Ra in some way.
A few of those ways is the tears; Ra weeps in some depictions. Another two images of Ra is the pheonix behind the mirror plate, and the serpent coiled around the mirror plate (which also doubles as Rayo's Mark). Ra is often depicted as these two things, more often a pheonix/bird than a coiled serpent.
On the mirror plate, its slightly transparent, and you can see the body of the pheonix as well as part of her chest plate underneath of it.
I made the mirror plate and the transparent fabric on her tail that rainbowy color to slighly match the gems on Sigurd's armor, just to tie the two together, as he is her adopted son.