Extract Illustrations

[amoebapro]

Hi, new member here, just registered to make this question: Is there a way to extract normal (non affection) illustrations of my flower knights? I want to compose a wallpaper of my lovely Maple for my desktop but screen capturing her full body illust results in blurry/low quality image. I've been searching on boorus and even across Utsurogi-san (original artist) webpages, and I can't find any normal Maple illust (there are x-mas maple images but I'm not looking for her... yet )

I think I have read on the DMM FKG wiki that you can download some of the cache of the game, then decrypt it and extract some of the content, but is that doable in Nutaku's version?

Any help will be appreciated.