Like most artists, I have hundreds of those... I looked into my old WIP folder and this stands out I guess.
It's from five years ago, and at the time I was very proud of the sketch - I drew it fully on paper, and the background took ages. Character proportions ended up kinda wonky, but regardless I worked hard on it.
The reason why it's not really "finished" (it was going to be a fully shaded piece) is mostly because coloring the background felt like too much work, and it was hard to figure out the right colors?
Maybe I'll do a remake of it someday, who knows. I actually got terribly rusty drawing environments since then.