Feedback for my entrance I have created for an SCPF site.
Just noticed that the snipping tool did not fully disappear in the corner of the second picture I applies for that.
Looks good, If I were you, I add some more shrubs and plants, maybe winter looking trees into the scene to give it more of a vibe. But never the less, looks really nice. Keep working on your build!
Would add decorations into the corridor, as currently it is empty save for the poster.
Ideas could be :
Adding pipes and wires to the corridor
Barriers that people can use to shoot around/hide
Sector signs??
Those are just a few ideas, im sure you can make loads more.
And for the outside, just make it a bit more prominent, refer to the persons post above, and also add site signs and maybe the SCP logo as well
Other than that looks nice and clean!