Seeking Feedback: How Can I Improve My Presentation on UK vs. US English Differences?

I have partly done a presentation focusing on introducing trainees to some of the major differences between American English and British English. This is still a work in progress (particularly on the grammar aspects), so do bear with me.

I'm open to any comments and suggestions from you guys on how to improve the current material. Thanks and more power to this forum.

Finally fixed it. Here's the PPT file.

Thank you.

Thanks for your feedback. It's been a while since I uploaded this piece, and there have been a few updates on my presentation. I will try to upload an updated version sometime.