That was 'something'. :)
Let's start with the visual elements... I am not a kind enough person to lie: Your "animation" barely deserves to be called that and your drawings are very rough. Your Art Portal submissions look better, so I presume you are still getting used to the software you use to animate or that you were on a deadline of sorts. I am not sure what the bit at 2:08 is meant to represent, but to the uninitiated it looks as if you just gave up. On top of that, there's some very noticeable artifacting.
Overall, I get the impression that you might benefit from getting yourself a better program to animate with. Here's a selection of what NG recommends in this regard (many of those are free-to-use):
https://www.newgrounds.com/wiki/creator-resources/animation-resources
Now for the audio: As unimpressed as I was with the visuals, both your voice acting and the recording were done well. The sudden stop before you finished your last sentence was really unfortunate. There was occasional rustling of papers from turning the pages of the script, some cuts were made too hasty, and some minor issues with your pacing occurred with longer passages... But other than that your delivery was very stable and easy to understand. Considering that this was your first video with audio, this was impressive. ('And' you picked a good volume - something beginners often ignore.)
I would even go so far to recommend you to look into voice acting. Maybe consider recording other edutainment texts, poetry, or short stories that are no longer under copyright. The works of H. P. Lovecraft are popular choices and will always find an audience, but if you're hardcore, you could read 'The Communist Manifesto' by Karl Marx and Friedrich Engels. ;)
Lastly: The writing. When I was greeted with a 2-frame animation at the start of the video I did _not_ expect that I would watch this video to completion. Sometimes you do not know what you want until you find it. And it seems 'today' I wanted to be educated about the logistics of building a medieval castle. ;3