Sometime in your studio, you don't need a picture to create a new painting. You just draw one or 2 lines with your pencil, then this is your paints that create a landscape or Seascape when they mix toghether on the paper.
What is not easy although is to create an atmosphere which tells you at the end (and at the end only !) that what you did works.

Here are two tries, the first one which suggests an island and the second one a sea shore with moutains.