- Audio - good, but (IMHO) don't have background music running all the time. The level for this introductory video was reasonably good - but it caught my attention during breaks in dialogue, which I am concerned would break concentration when discussing an involved subject.
- A few "Ums" and "Ahhs" - noticeable but not too distracting. This will get better as you get more comfortable, so don't panic.
- Not showing your face - not a problem at all. I would be exactly the same.
- Content: Sounds promising. I've cobbled together a couple of setups, but I'm sure my efforts are the equivalent of Lego. I would really like to gain some deeper understanding (at a digestable pace) so I can do things better.
- Make sure you don't get too wrapped up in production, special FX and post production efforts. These can become rods for your own back. Keep the objective - the content - in the forethought of your efforts.
- Encouragement: 1000% Do continue!