Just so you know, the XXXX is a placeholder for a number until I figure out which one I would like (this may seem obvious, but there is always that one person). I have not finished this, and your ideas and critiques will help me a ton!
Hi, I'm going to go piece by piece with bits that strike me as off, or in need of revision - and as I can, I'll suggest alternatives.
Overall, I think a refresher on the writing guides will be helpful. I think with work it could be decent, but in its current state, this article would bomb on the mainlist. We have a plethora of guys what fight good. What will you do to make this one special?
Humanoids are especially difficult to spin into an SCP, especially as a first. My first draft was a humanoid, I worked on it for a year straight, and now I use it as an example of how hard it is. I never finished it. You might want to put this on the back burner, put out a few articles first that're simpler to write up, and once you have some experience with it under your belt tackle it again. You don't have to set it aside, by any means, but it might be a good decision.
Good luck with it.