First, the image. I'm not goign to lie, it looks fake and really hurts the article. The spider looks so out of place, I assume tat it was copy and pasted into the image and rotated slightly. Good images can help an article, but a bad image can ruin one. If you can't fine a better one, I'd suggest removing it.
I don;t know about these containment procedures, they seem to talk way too much about what to do in the event of a containment breach. I feel like the point of containment procedures is to keep things…contained. I guess it's OK to say what to do if it breaches containment, but it seems like there's way too much of it here.
Specific examples span the entire range of species within the genus.
The entire species isn't really a specific example, is it?
You seem to have a contradiction here too:
SCP-####-1 is to be provided a small mouse for sustenance once a week.
SCP-#### requires no form of physical sustenance
Deprived of human victims SCP-#### can survive by ingesting any mammalian blood.
Also, what?
SCP-#### seems to be ignorant of its origins. It shows little enmity, seemingly regarding humans as little more than a food source. It does, however, seem to greatly desire the freedom of SCP-####-1.
SCP-#### is the hive mind and -1 is just part of the hive mind. So the hive mind wants only one part of it to become free? This just seems strange.
a mundane acantholycosa solituda.
Should look like Acantholycosa solituda.
I would have pointed out more, but I skimmed most of it. The main issue for me is that in the end, all this is is the description of a monster that kills you. There doesn't seem to be much here to keep the reader interested; the length of these descriptions actually does the opposite. The article is devoted to showing off these spiders who just use a compulsion effect (it's kind of an overused trope nowadays) to kill you.
In the future, instead of focusing on the SCP's abilities and stuff, take a different direction and focus on a story that you would like to tell. Build the SCP off of this and you'll have a more interesting article that can hold a reader attention better. I'd also recommend reading things like Clinical Tone Declassified, as the tone was problematical throughout the draft.
