I'm proud of this design, honestly. I think it looks very good! Now, the reason as to why she looks like this:

1- The one wing is because of Lucifer losing his once he was defeated and fell from the Heavens.

2- I'm making her half "monstrous" and half "perfect". Even tho the pose and the thing on the back are based on Zamasu, that is not based on Zamasu. I thought about it since the one wing would represent her once angelic appearance and the other one would be the more devilish one.

3- The angelic half is still imperfect, of course, since she's a demon. That's why it might not be fully devil-ish, but parts of it will be. Also, the closed "blood-crying" eye comes from somewhere, but I don't remember from where. It's on the back of my mind, but that's it.

4- The broken halo comes from Expurgation, but I think it'd give more significance to the "fallen angel" meaning.

5- The horns come from Satan, as you see there, from TBOI. I was sent that pic, and I thought it was a good idea.

6- Big proportions BECAUSE she actually has the fertility sign, Ankh. It's considered a satanic symbol by Christianity.

7- The weapon and she have ice because, in Dante's Inferno, Satan is in the last layer of hell, which is made of ice. She'd be Satan, basically, just like Sarvente would be Lucifer.