A few things:
1. Personally, I think it'd be best if you went with a solid color or a white background. The reason why is because I found that the patterned ones you used for pages one and two made it difficult to read the text. The one on page one essentially was a dark background under dark text, and the one on two had bright colors that clashed with the color of the text (for me, at least). A good way to ensure that it's not difficult for the reader to read your text is by not using a patterned background. (Alternatively, use one with lighter colors.) This is, however, just me.
2. Again, you'll want a beta-reader, but you look like you're actively searching for one. However, I'd recommend holding off on production until you actually get one because otherwise, you'd end up with odd errors in every single issue from now until then. Like, yeah, "Abdomen Fans." (Not sure what you were trying to get at there.)
3. About your featurette, always, always,
always do some fact-checking before actually putting something in a newsletter. First off, the article you found (which I had to Google because you spelled the URL incorrectly) was from about six or seven years ago. Secondly, it's from a website that also claims Pokémon is a tool of Satan. No,
really.
4. However, the article that I managed to dig up concerning this (
which you once again plagiarized, given that there's again no byline, and you probably didn't ask for the permission to take this story) is also not a reliable news source. While it states statistics, it's odd that this story isn't found on any other website but a dead one.
4a. Oh, and by the way, again, if you want to make a newsletter, you've got to write the articles yourself and cite the sources correctly. It's just not good form if you don't do that because it makes you look like you don't care enough about the newsletter to put effort into creating original, enlightening articles to catch a reader's attention. Also, if someone finds out you did that, you run a risk of ticking people off and getting trolled. (I know someone who stole article content from an active Pokémon fansite, and what happened after that? Flamewar between my friend and every single member involved with the project he stole his information from. Fun times.)
5. You also plagiarized
Bulbanews (while giving the wrong credit at the bottom of the paper). Basically, if you didn't get permission to feature content someone else wrote for another website, don't use it. It's bad form.
6. The comment about negative feedback on the last page? I'm sorry, but sometimes, you've just got to take it. =/ We, the public, are trying to tell you the things that you could do to improve your paper and the things you just shouldn't do. Completely copying someone else's work without actually giving them credit, for example, is not only wrong, but it can get a lot of people in trouble. That and, I'm sorry, it's just not enjoyable to read something when you know it's someone else's work, when you know it's got a lot of errors that need to be fixed, et cetera. Yeah, you're in it to entertain, but from one writer/aspiring editor to another, when you entertain, you're doing it for the public. If the public don't like something about it, you can't just say, "STFU." You might as well just keep your newsletter private if you refuse to accept or listen to the opinions of your audience about your paper. You keep that up, and you'll end up with no readers at all.