Shadows on the ground are from the lightset. Shadows in the image on the sphere are in the bitmap. There is a specular light spot on the sphere that will move with the lighting, but that's about it. I cannot find any way to get a reflection from a mirror textures such as what you had above, Dash. Bryce does it well, so does Cinema. Poser just doesn't seem to have the capability. I have not tried it with a skin texture on a figure. Seems to me the light probe is too strong for that. Maybe plugging the hdri image into the specualar node would be better?