Feedback: Michael, Camille

Mike:  Adjust Brightness and contrast to have more luminosity in your image.
           I still see the ''ring'' around some shapes, have you any reason ?  We don,t have that in the nature and by doing that you neutralize effect of lighting on the arm of the guy in foreground.
           Careful, the cloud shape becomes too specific triangle form.
            Make sure to show the continuity of the background ( same colour) behind the smoke at A&B

Camille: I suggest a toned background, choose any colour you like, the dark background make the lighting glows on your subject.
             You can do some more shading and highlight to give better contrast and  3dimensions to the subject.