I am making a type poster, here is what I have, I want to make sure I am labeling things correctly. Let me know if you see any spelling, labeling or definition errors! Thank you!

Well, it’s good that you are asking for a “peer review“. But honestly, I see way too many problems to even attempt to fix this. Unfortunately, content like this creates more harm than good, as it becomes a telephone game, where stuff is copied from one questionable internet source to the next, adding more and more errors with each step. It’s better left to educators who can create this content based on a long-time professional experience and credible sources (like a sufficiently large library of typography books).  

I am unclear as to what this poster is intended to convey. It strikes me as a mash-up of information about type without any underlying starting point, summary, or cohesion.

For example, the top-most font is a black letter font. Why? Of all type styles to open with, why a black letter?

Below that, you use a fairly classic serif font to illustrate characteristics such as x-height, ascenders, descenders, etc. But nowhere in there (unless I missed it) do you indicate that the font height is the height from the ascender line to the descender line.

I am far from an expert in typography. I'm a neophyte. Looking at this chart makes my head spin -- I can't conceive of any use for it. Those with my rudimentary knowledge of typography don't need it, and I respectfully suggest that for someone who knows less than I do it will only add to their confusion.