The ISS assembly is now getting more and more 'complex', so I'm now looking at definitely changing from low polygon 3D model to a medium/high polygon 3D model. This is mainly because the hand rails and minor details are going to add significant amount of polygons.
Just so I could see the 'overall' picture, I've added two 'modified' Russian launched modules from the Mir Project. I'll work on these once the US modules are complete.