Assuming your goal is to create figure photos for shmax.com, you want to put your strongest light(s) directly overhead (I believe Highprime uses two overhead lights, and nothing else). If you do that the shadow will pool directly at its feet in a soft puddle, and avoid the 15-shadows-going-everywhere phenomenon that you have in these photos. For the yellow tint, make you're you're using natural white light bulbs, and not the typical house lamp bulbs. If you're still having trouble with yellowishness, experiment with your camera's white balance control. There are usually only a handful of preset settings (tungsten, fluorescent, etc), and one of them should do the trick. Keep at it!
