Graduate / Statement of Purpose for MLIS (Library & Info Studies) Program at LIU [4]

I think you should state reasons why you are choosing that particular schools for your MLIS because most schools look out for that and I did not see anything about that in your essay other than that every other thing is ok.

Graduate / Need Help to write SOP to change Biomedical Engineering to MS in Computer Science. [3]

First you need to check what the school you are applying to looks out for in your statement of purpose that will generally help as a guideline, you can also use the following pointers while writing your essay : Your personality, Why you want a masters' degree, Research experiences and interests, Community and volunteer services if any, Leadership and communication skills, Events and inspiration in your personal life and Reasons influencing your particular choice of school. I hope this helps.