I am *very* impressed. These visuals are on par with AAA titles like Witcher 3 and Crysis 3, and most certainly better than the majority of un-modded Fallout 4.
Some of the glowing decals look a little bit blocky and blurry as though they have been scaled (photos 2 and 12), but I'm sure that's already on the 'to-do' list.
So many of these map assets are so cool, I keep thinking of ways to possibly use them in my own maps when the time comes.
Seeing the depth and contrast given with the UE4 lighting system, I think it might be kind of cool to add a flashlight functionality to the human helmet. Alternatively, some sort of simple 'night vision' goggles for 150~225+ credits that ignore or reduce lightmapping and add a cool filter effect to the player's vision would be another interesting idea.
Either way, the shadows add an awesome atmosphere to this map that I haven't seen before.
Keep up the good work!
P.S. - It would be pretty cool if we could get one or two screenshots in additional resolutions like 2560x1440 that we could set as desktop backgrounds eventually.
:3