Check on the art medium, I'm not an art major. Looks water-based, but kinda opaque, so I'm going with gouache. Artist labels it with "colored_ink" 「カラーインク」 on Pixiv, whatever it means (Pixiv wiki just explains it as "Tool with intense colors used in liquid-based paintings.")

Looks like Cornwall.

I suppose there's only so many landscape types possible, but it's interesting if a country has a range of types broadly similar to another.

[ Cornish and Welsh miners settled in Patagonia; whilst north English miners found the lead-mining districts in Spain homelike. ]