Yeah, I feel bad because it does seem like we're ganging up on you. With my first post, I was just trying to inform you that there was a fairly good chance your cover was a bootleg. Honestly, as long as it makes you happy, it doesn't matter if it is or not, I was just trying to point out the possibility. I personally prefer to buy only legitimate covers myself, even if it comes at a tremendous cost, but I've been duped into buying a few bootlegs over time myself. Others, who are definitely saner than I am, realize that the cost difference may be worth a small trade off in quality; but either way, no one wants to find out a cover they purchased, which they thought was legitimate, was a bootleg.
Please don't let our chats discourage you from posting in the thread. Bootleg or not, you're happy with the cover and that's what matters most. I don't know why I didn't think of this before, but if you do want to find out if your cover is legitimate or not, there's actually a fairly easy way with covers from this circle, assuming you still have the packaging it came in. The circle's trademark is putting a sticker in the bottom left-hand corner of the packaging, as seen in the spoiler below. If you still have the packaging and it has that sticker, your cover is likely legit; if the sticker isn't there, it's probably a bootleg. That's not to say each one is a sure thing, but it probably sticks pretty close to those conditions.
http://www.mandarake.co.jp/information/2010/04/11/21utu05/index.html
For everyone else, here's a close up shot of one of their covers to get an idea of the material:
https://www.fakku.net/image-404/images/799403-PYAPTO8.jpg