This image represents dynamic power to me. Not just for the title that it has. It houses the power in relation towards the still strength that such a small framed figure usually doesn't carry. She clearly is nothing to take lightly. Primarily, such should be known when there's an absence of a traditional head, and a presence of a lengthy flame of fire in place of it. The stone cold fact of the nude body with such a placement is a display of power. That coupled with the curved thin blade offers a strong understanding that playtime already reached it's end point. Though most usually associate flames with demons, majority ignores that demons are but fallen angels. In regards towards the techniques of the art itself, everything is properly done without overly applying the details to where you'd be considering it as completely digital. Wisely, it shows the female form, yet not to where it would be easily placed under the ranking of explicit. I clap my hands at this over the awareness of power and demand for attention towards that, while showing the form but having that not own the attention. This deserves respect. And, from me, I give respect towards this fiery Angel.
I used to believe that all angels had wings... this is definitely a new way of looking at the concept of an angel. Angels are also normally perceived as saviors not avengers or warriors, which is contradicted by the knife. The naked woman on a dark background represents a very strong struggle with reality. The three main types of strokes all show energy the thin, wavy strokes of her hair, the broad strokes of the background, and the straighter strokes of the skin show a more concise being than the chaos beside her. the shine on her leg means that there is light where the viewer of the art piece is at- this might mean that the viewer is the hope of the angel, maybe the angel's last hope.
This is really beautiful but I hope you don't mind me pointing out that the composition is weak because it has a "leaning to the side" feel. If you take that further leg, the one that is darker, and change its position so it's on the other side, it will make the image come to a complete circle and lead the eye back into the image over and over.