Thanks a lot for jacek.zielinski for uploading this model so that I can modify it.There is no textures, only materials are assigned.It is not a lowpoly model, just maybe because it contains many parts and separated faces.In mb file there are also nurbs surfaces, they are been hided, you can convert it if you feel the polymesh surfaces are not good enough.This is a triangle model contains two futuristic office buildings as the background of the mb file, you may find the ground plane is too large. You may want to delete the ground plane in dae and fbx file.In the mb file the material are almost arnold material.