I like the composition, and sharpness. The MK IV did well in this challenging lighting condition.
I would be tempted to try a slightly lighter version, even if some of the highlights will go hot, just to see how the feel changes.
As presented, does give a sense of mystery, and probably is very realistic as to how we normally see these guys in the wild.
I like the wing position and upward flying pose. I think it works as presented but am wondering what it would look like with exposure raised. Please post the techs, it's particularly interesting for an image like this.