Okay, firstly, what is this anchor thing, is it literally an anchor lodged halfway through the SCP's mouth? I would add more description to that. Also how you introduced XXXX-1, you literally through it at us, there is also no mention of SCP-XXXX-1 in your special containment procedures. I would go into further detail regarding how XXXX-1 is attached to the original SCP.
And to be clear, this SCP has.
- Metal skin of unknown origin
- Titanium teeth, why titanium and why are the teeth known but the body isn't, and for that matter the anchor
- a harpoon, is the harpoons compositional makeup known? what powers it if known?
- tank treads…. sooooo does this SCP need to live in water or can it survive as indefinitely as it does in water on land as well.
- you say it's diet is sea creatures, but then you mention "dirt and clothes" being expelled as waste does this mean it can survive on land based creatures as well?
I would personally do some rethinking on what your SCP actually does and doesn't do. There are also small grammatical errors throughout the page, you can probably find them in a proof read.
This SCP has potential, but in it's current state, it's a mess.
