Hi a very warm welcome to the site. The best place for advice is your assessor who's seen your written work and can advise you on improvements, also check if your course awards merit, distinction or if it's pass fail.
There are some tips on this page that can help focus your essay's structure and content
http://www2.le.ac.uk/offices/ld/reso...ve-essay-top10
Best wishes & let us know how it's going xx