This is just a lovely piece of art and a brilliant contribution to this miniseries that needs this kind of love and attention to have it grow, but from what I know about this particular character she's destructive and mischievous in which you shine through her facial expression and that "wicked/rock-on" hand gesture but I think how you could make this kind of artwork even MORE brilliant than it already is is to give characters such as her more motion in her body, to convey energy, and because of her destructive nature, show mess, show her posing for the camera, showing off her being proud of what she does.
Then again, I'm not quite the person who should be giving this kind of criticism, and who am I to mess with perfection? tbh?
That being said, I would love for a talented artist such as yourself to look at the only art that I have submitted (heads up, I consider myself a mid-beginner. ) and, to be simply put, judge me, I know I'm asking you to take time out of your day, but I would really appreciate you just ripping into the only artwork I have put up and give me feedback, it would be much appreciated.
Thank you for taking the time out of your day to read this long message.
-Archon