The most essential part of your closing is your “call to action” statement. Remember, the purpose of your cover letter is to land an interview. Don't end your cover letter saying you'll hope to get in touch. Explain to the reader the exact day and how you will be contacting them.
The last paragraph should pass a good impression on the recruiter. In the last paragraph, you must say why you are well prepared for the role, what makes you stand out in comparison to the others, your skills, your strengths. In a nutshell, everything you developed in the previous paragraphs you'll sum up in the last paragraph with some small words and lines.
