Having watched all of your videos now and given you have gone and recorded a decent amount of content, I thought I'd chip in with some comments for you (apologies if it does become a mini wall-of-text by the way, I may get slightly carried away but I'll try to refrain from too much depth).
From the first video to your most recent one, there's definitely a significant improvement from how your approaching the videos. I mean that in the first few, you appeared to be very self-concious, and it wasn't as fluent as your later episodes. Granted, there is still room for improvement in the area, I still occasionally get the vibe that your laid back but it almost feels to the point where I question whether your bored or not (I know your not, but there doesn't feel like there's any emotion behind the words on occasions).
I think with LPers, they have this sort of initial period where they try and find their 'voice' when it comes to narrating in videos. I don't think you've quite found yours yet; your not fully at home with speaking to a microphone with no live audience quite yet, and you haven't sort of found your basic mix of what your going to speak about, because your still experimenting in that area. I think once you've found what you find works, you'll immediately see a difference and find you'll be a lot more comfortable in what you narrate. I know from personal experience from commentating pool matches that I hate my voice when its recorded, even when discussing a subject I know well. That said, it was one of the selected recorded matches to get uploaded on a site for public view, so apparently it isn't THAT bad, but I tend to disagree.
That said, I agree with what others have said that with pokemon LP's in particular, you have to flesh it out with other topics, whather it be pokemon-related news or just real-life events. Sometimes the best topics are the sponteaneous one's that might seem totally off-the-wall. I once had a conversation in a bar once with some members of a snooker club I go to about recurring dreams we have and dreams that jolt you awake in bed from slumber. We spent nearly two hours talking on those subjects, and it passed what was otherwise a dull evening and made it highly entertaining and amusing. I digress however.
Your video quality I cannot fault. I have seen and watched worse and what you do seems to be simple but effective, and I don't think you should deviate away from that if you can help it. I think the worst thing you can do at this point in time is try to do anything fancy that may take up hours of time and end up flopping. I'm also going to chip in and say your mic quality does seem to have gotten better from when you made the change.
One final issue that I'm going to raise more as a note than a warning is that you have started a second LP whilst still doing the first. Whilst I have seen and know of people who have successfully run two LPs (or more), it does set me slightly uneasy because you may overload yourself, or could see you ending up with unfinished projects. I know of one LPer who I used to watch who had nine 'ongoing' projects, and he'd usually get ten episodes in and it would be sidelined for another project he started up. I know this is a rather extreme case,but it is something to be wary of and to be observant of if it happens.
Overall though I think your doing pretty well as a beginning LPer, and I sincerely hope it goes on from here; I'll certainly keep watching your videos on here where I can afford time to, and I wish you ongoing success in your projects. I'm happy to have a poke named after me if you wish also.
Fire type enthusiast since 1998