Great concept, good writing...
I really liked this episode, and look forward to seeing more episodes of RIAG. This was a nice introduction to the series, setting up the concept and introducing the characters.
I read the author's comments, and wanted to comment on point #2: sound.
I think you're actually quite good at voice acting, and thought the voices were well done. I think you need to do some basic engineering work on the sound itself, though. The sound-levels especially need work. I found I had to keep my hand on the volume knob, because some sounds were really loud and others were very quiet. If I set my volume so that I could hear all of the voices, some of the music and a few of the louder voices were really, really loud.
I think that may be what you were trying to say in point #1: jumpy sound. I don't think it's absolutely required that you fix this episode, but I really do think you should take time to adjust the sound for episode #2.
(if the sound had been more consistent, I would've definately rated this episode 10/10 instead of 7/10)
HTH.
-beef.