Bethesda may be good at models, but they do make their fatel errors at times
For example, I personally hate the non-moving shoulderpads on both the regular T-4x whatever armors and the Tesla Enclave armor. The way the models work, they don't even touch the shoulders it seems. Also, there's my giant beef with the T-51b model. When you jump, the undermesh clips the cup plating. Also, the texture doesn't line up well on the back of the helmet and the legs have giant gaping holes where the legs meet the cup.
Overall they're good though. Those problems and a giant hole in the Laser rifle model make me sad though :<
I have a question though about your Lancer model though. What's the giant square on the butt?