Overall, you're doing a great job on creating pages for the wiki, but I would just like to note that you should really make sure to add links to them. If you don't know how, it's not very hard, just highlight what you want to link and click the button that looks like a chain link.
I have noticed (on the Slackjaw Snorehead and Brutopia pages) that you tend to mention stories in the description of characters and places; you shouldn't. The descriptions are supposed to be mini biographies written from an in-universe point of view; anything about what stories they are featured in is for the Behind the scenes section.
I must congratulate you for what you have done on the Wiki so far, but as our Notability Conventions will show you, it's not ideal to keep creating pages about random stories that haven't been published in English (unless they were fan-translated; that works too). The exceptions are stories that feature the first appearance of an important character or concept (e.g. Dugan Duck's first appearance), but that aside I'd rather you pick stories once printed in English.