I seriously love drawing stuff like this,, just randomly doodled scenery using dark colors (so I can focus on shapes without having to worry too much about detail)
It's great background practice and lowkey relaxing because I'm literally just drawing whatever comes to mind :'0 my eyes probably hate me though, I often draw so dark that I have to add an overlay to brighten it up so its actually visible gjkdnfkl
The oekaki watercolor brush is actually great for this style tho, i might use it more!