A pesar de su sencillez es muy agradable a la vista. Podrías naturalizar y cargar de elementos más interesantes la región de la arena, quedaría un trabajo espectacular.

Are you sure for Ohko Stone ? they look likes to Lava Stone. Your work is good, especially the left side. On your right side, i have shrinks a little more the vanishing point. For me it is too large. Congrats

Simple yet impressive layout in such a small space ! you have successfully manged to create a natural and realistic landscape using just a few elements - a very challenging thing. Only thing I would consider to improve is adding some very small element to the triangle of white sand and improving the vanishing point between the rocks ( it is positioned in a very good point, but missing something to enhance it

.