Draft of Open Letter

In the following post I will point out the points I think my peer editors should look for while they read my letter.

PetarM. "Writing a letter" 2/25/2012 via Wikipedia Commons. CC BY-SA 3.0 License. 

HERE is my draft of my Open Letter.

Hi there,
In my draft I feel like I have successfully included what I needed in order to answer the prompt, however, I feel like overall it's not as detailed as I could have made it. I would love some help with where I could include more, and what type of examples would help make this letter more informative. Also, I'm not sure that I included enough examples in my letter body to help get the point across and answer the prompt, any feedback is greatly appreciated.