Machine Learning Project

I need to do a project in my Machine Learning class. Advisor of the course suggested some ideas for the project and every idea seems very interesting to me(some of them are forecasting weather, programs for playing games like chess, image classification etc). I want to do all of them. Till now I was not able to decide on the project. Today I thought that I should fix on something and start working on it. I chose "Face Detection using Neural Networks" and I truly want to learn many things. I am fascinated by the applications of machine learning and I want to implement one and see the taste of it. I should/will seriously work on this project.