1) Your picture is too large. Please use the formatting that is provided to you in the How to Write an SCP guide.
2) The room needs to be contained in another room? Is that really necessary?
3) "An attempt was made by Personnel D-2319 to open the windows [AND HE WAS FOILED BY MASSIVE WALRUS DICKS]" If an expungement can be replaced with anything involving walrus dicks, with nothing to say otherwise, it is not good expungement.
4) Okay…you take far too long to describe what it actually does, and it is not nearly good enough to back it up. It's a vague, indistinct figure that does vague indistinct things. There's no image to hold onto, nothing memorable here, and nothing that even remotely relates to the title.
Sometimes, I just need some harsh criticism. Thanks! Should I even try to salvage the idea?