Attached Link: http://www.renderings.org

In Bryce4 you should not have to rotate the texture map. The only things I can think of,check the ambience setting,I find I need to tweak them.You may also want to check to see if you are using a patched version of Bryce. Also,are your female figures created using Victoria?I haven't imported her into Bryce but I know some folks have trouble with her.There are some tutorials on importing her.