Put them ingame:
Old
New
Brigthness matches the other buildables better. However, the main body of the armoury (cylinder that has the screen attached to it) looks a bit more brushed/scratched/noisy while the others look a bit more smooth. Raising specularity a tad could improve this. I think the top of the armoury's feet would be a good reference for its main body.
Old
New
A seem on that side (to the left of the screen) is more visible now. The area below the top where the red stripe meets the small silver stripe above it results in lowpoly artifacts, maybe making the silver stripe black (like the horizontal black stripes on the main body) could work around this. Again I feel a tad more specularity on the main body could result in better highlights.
The top looks much more interesting but the material looks like solid iron and is quite dark compared with the other surfaces. Maybe using a material more similiar to the feet/body would be better. You could paint the golden ribbed part black to maintain some contrast.
A family foto. Surface materials vary quite a bit but I think that's still within reasonable bounds.