こちらのイラスト(pixiv #52886987 "»":[/posts?tags=pixiv%3A52886987])の２人の出会い的な。
３枚目は上記の２枚目のおまけ絵です。

The girl and the dragon from ("pixiv #52886987 »":[/posts?tags=pixiv%3A52886987]) meeting for the first time.
The third picture is a bonus illustration of the second picture of the aforementioned set.
<tn>i.e. post #2191649 is a bonus illustration of post #2141776</tn>