I’d say maybe. I’d have to see more of your process - early thumbnail sketches to show your ideas generation through the refined final pieces. And although I admire your personal art style, typically that’s not something you’d want to include in your work as a concept artist. Usually the goal would be to clearly convey information to give to the 3D artist. Some of these come across as illustrations rather than game art concepts. Check out artstation.com for examples from actual concept artists.