What are the risks, opportunities and implications for UK/Europe presented by the significant demographic shifts in Africa?

Please fllow the Comments and feedback are on attachment.
A couple of things from my tutor:
    Be careful of the data that you are using
    Say clearly that you are looking really at illegal migrants
    Talk more about the details of the demographic shifts (increased number of young people in Africa)
    Use more examples and data to support your arguments
    Divide the opportunities for the UK into opportunities in Africa, and opportunities in the UK