Is this from an official image, or just uesr-created (i.e. gather a bunch of badges into one single image by oneself)?

This is not an official image.
Source↓
https://www.pixiv.net/member_illust.php?mode=medium&illust_id=11947321

saemonnokami said:
This is not an official image.
Source↓
https://www.pixiv.net/member_illust.php?mode=medium&illust_id=11947321

OK then.

moonian said:
Is this from an official image, or just uesr-created (i.e. gather a bunch of badges into one single image by oneself)?

Actually the badges are offical, you can find them in the ending theme of Strike Witches 2

Frederickson said:
Actually the badges are offical, you can find them in the ending theme of Strike Witches 2

I wasn't talking about the authenticity of the badges, but the image as a whole, as stitching official images from various sources by a user/uploader is still called user-created. As mentioned by another user above, this isn't the case.