The V-JUMP Magazine has posted the reference arts used for Raye and Roze for the upcoming anime, The Chronicles:

TL note #1: The greenish note in the middle is unreadable due to the contrast. It is likely that it says “敵国マーク” (emblem of the enemy nation), much like the reference art for Roze in the Card Game Artworks book.

TL note #2: The note on Roze’s hat mentions that the crest is drawn using color tracing, but the context is somewhat vague: In terms of storytelling, a “引き” is a “hook” at the end of the page to make the reader interested in the next page, next chapter, etc. This “hook” could be referring to the teaser where Raye and Roze are fighting.