those are wings, not guns
Interesting, are they also guns though?
The style’s nice, I think she could use some pupils though =P,
What was this done in?
Nope, they’re definitely guns. 
Also, pupils would be nice, but that would mean higher resolution. I used Artrage, with the oil brush tools, so getting too in depth started getting hard (seeing as I have limited experience with oil paint. XD)