My first video

A friend suggested that I make some videos for promotional purposes.  This is my first. It's definitely rough, but it's a new medium to me.  If I make more, I hope that I'll smooth things out.

Here it is.

One of the first things I'd like to figure out is how Youtube picks the thumbnail image--what it shows me is not what I would want--it's not the opening title, or the closing--it's in the middle somewhere, where I'm speaking and my mouth is open and I think I look a bit frantic, even though I didn't get that impression watching the video.