This paragraph is stating that no matter who, or what you are, we all come from the same blood and live on the same earth.
It kind of helps people work together, a lot of people tend to slack off more if they can't exactly work together.
Tell her you love her and you can’t stop thinking about her all the time
I think that this is a very good opening paragraph. I can clearly tell exactly what your writing piece will be about, and it definitely hooks me in as a reader... GOOD JOB!