I will be critiquing this artwork as a grayscale linework only and as based on my own taste.

Strenght
This artwork is no doubt an output of a master who incredibly
depicted us an air battle of two powerful ladies.The lines are done on his very own unique style as what we see in his gallery. No question in the anatomy as both of them makes me drool as a male specie, their hair movement adds more on the action scene. The skyscrapers adds more depth as a background of this cat/dogfight.The wings are attractive too.

Weakness
I understand that the style of this artist is to produce a realistic approach as he can,However it would be impossible for the lady below to dodge those power blasts coming out from the lady with the wings. And it would be unreal that the powerful winged lady couldn't hit here in that very short distance.Perhaps , a force perspective would actually do the trick for that .

overall, still an artwork, art collectors would love to hold with them through the years.

Mike,

As with everyones art one of the things that I am big on is shadows and shading, it can make or break a picture. When I look at this picture I see the shadows from the buildings falling to the bottom left corner but Witchblade and the horned lady( obviously I do not know them) the light source seems to be coming from the opposite direction. For example. Under Witchblades foremost arm the shadow is under her arm on the small of her back. Thus the light would be coming from the left side of the page and the shadows on the buildings would be on the opposite sides. This is, I am sure, a small problem that most of your followers do not notice or care about but in the mastering of ones art all details should be taken into consideration. Good Job and thank you again.