Here's my finished mindmap. Text might be hard to read in some places, this was designed to be printed A2 for my portfolio.
I'm fairly happy with the result. I really wanted to put my own spin on this, and hopefully I've done that. I think it definitely speaks volumes about where I want to go in life, and the various strengths I have.
If you are planning to include a mindmap in your portfolio, definitely try and think outside the box, and put your own twist on it. It will catch people's attention and that is what you want.