Inspiration - 100 Color Sketches

I am looking for some influences for these 100 Color Sketches. I want them to look good and stand on there on. I started to think of vintage posters.

I love how this Glacier is reduced down to some basic shapes.

I am inspired how this shadow area still reads as a hillside.

Matisse seems like the perfect inspiration for this assignment.

I like this one a lot. Reads well even thou there are very few colors.

I love the colors in this mountain.

These colors here are stunning.

This is a photo I took of Diaz Lake. I started to play with simplifying in photoshop.