That is a little problem with the mesh and not the texture .. if you look at all the pieces and try to find where the flaws are you can probably click on the part and then get to the smooth function thinger (sorry it is real late) I am noot sure what button but you normally have e and colors and such .. click on all of them until you come up with two spheres, one polygonal and one smooth, click the smooth function and it SHOULD help ... good luck