The issue with this scene is definitely the lighting.  The foreground character lighting does not match the background lighting at all.  It is hard to tell whether this is an early morning or late afternoon, but my guess is that it is early morning due to the lack of intense colors.  IMO, this is one scene which may benefit from Image Base Lighting.  The foreground character is too well lit, the shadows not intense enough.  You may have overblown your lighting using 7 light sources but we don't know where the units were placed in the scene.  Usually I go simple and built up from there.  I seldom go beyond 4 light units but, again, that depends on the environmental demands.