Artist's pixiv: https://www.pixiv.net/en/users/1016672
This work: https://www.pixiv.net/en/artworks/89906509
Artists's fanbox: https://gorillamu.fanbox.cc/

Artist's comment: ゴブリンは雑魚だからこそ輝く
でもゴブリンを主役にするなら何らかの形で輝かせないといけない、というジレンマ

DeepL Translation: Goblins shine because they are small fry.
But if you're going to make goblins the main character, you have to make them shine in some way, and that's the dilemma.