yeah deffinately youre shadows are to black and dark for such an overcast day they should be more transparent also i think in the top image the shadows may be going in the wrong direction its hard to tell considering theirs not to many clear shadows in the scene for reference
Is there any indirect illumination in the second pic? He seems unaffected by the environment. His shadow is much too defined and I think it's at the wrong angle, look at the shadow of the shopping cart, like its from a cloudy midday sky.
SimplyMaya specialises in Maya tutorials. We offer over 1,000 individual Maya training videos, ranging from basic Maya tutorials through to intermediate Maya tutorials. Our tutorials are created by instructors with industry experience and are designed to get you up and running in Maya quickly without making it seem like hard work.