BTW this is concept art for an open source game. It's not a matte painting. But I'm using matte painter's techniques.
Are they really matte painting techniques? I would say yes because the techniques originated from digital matte painters way before even concept artists where using photoshop. I wanna raise a glass to concept artists of the pre-digital age. Some of the work they had to do with prismacolor pens is amazing. Kudos!
Anyway, I couldn't stay away from this one: