Modeled and rendered in blender, and textured in substance painter. My mistakes. After completing the project, I see that it was possible to reduce the number of polygons, add details in places, and make textures more interesting. This is the first time I've used UDIM for this model. 7 sets of 2k each. After the fact, it seems to me that it was possible to take the resolution of textures more and reduce the number of sets, and make UV more accurate. If I understand correctly, then 2 or 3 sets of 4k should put less strain on the system, compared to 7 sets of 2k. In this regard, it would be good to get feedback from experienced artists. I will be glad for criticism and advice.