"That back shoulder texture change looks like the bitmap texture is not perfectly matched. That also may be true in the front image. If you use the Render Preview mode in the Rhino viewport do you see the same problem?"
"Thank you Scott, but isn't this the problem. With this image I can perhaps to explain better.
I've imprted a3ds file and worked in Rh5. The body texture works quite well but Im not able to
delete the seams junctions. Thank you…"
"A standard bitmap texture needs to be made tileable in order to use it as a material. This process can be easy for some textures and very hard for other textures.
Bitmaps such as brick, tile, certain fabric and other repeating patterns can be made…"