comments on my presentation and improving my presentation skills

Before it was my turn to do my presentation, I did a few speech practices with my partner. During my practices, my practice partner had made some comments on my presentation, that are:

1. I should make eye contact with the audience
2. My voice should be loud and clear
3. I should think of a suitable attention getter

In fact I did improve some on my presentation, however, when it was time for me to present, I could not help feeling stage fright. In my power point slides, I had an audio for my attention getter but it could not be played. So, to rescue myself from that problem, I asked a question to my audience. Phew...

In the end of my presentation, I have received a few comments from madam Zarina, my English lecturer. Her comments were:

1. My slides were short and precise and therefore I should face the audience more than to my slides
2. My attention getter was a short one and I should have done better than that.

From the comments I have received, I am determined to improve on my presentation skills and be more confident when doing public speaking.