Well done
The character herself is very well drawn. If there's one thing you did really well on this pieces is the studio lighting on Mercedes. The glow effect that you have on her makes her glow as if she's out in the sun. The wisps in her hair is a nice touch as well and really add personality to the overall piece. Mercedes hair really does look good and I can almost imagine it moving in a breeze. All in all the piece looks great and I look forward to see more of your artwork.