After adjusting the lights you need to fix the textures in the texture room.
To get an idea of how to make these textures look right, try rendering the same figure from the carrara browser. V4 for example, is available in Carrara, ready to render. Compare the texture settings to what appear on V4 from your Poser import. If you adjust your Poser import to similar settings, it will look pretty good.
There are some tutorials on this over at DAZ and Carrara lounge.