I have several landscape painting tutorials here on my website. Including impressionist watercolor, soft pastel and charcoal landscapes:

Impressionist Watercolor Landscape Painting Tutorial

I have a blog article/tutorial on painting watercolor landscapes here.

Charcoal landscape Drawings

I love color but black and white images can also have a power. The following were made with charcoal on drawing paper.

I have a blog article on monochrome landscape drawing here.

Minimalist Soft Pastel Landscapes

I have a blog article on painting landscapes with soft pastel here.