This is a standard composition with the river leading the eye to the mountain.

Sometimes when there is snow on the ground it is difficult to differentiate between the snow and the river where they are both caught in the sunlight, so I have put more shadow in the banks of the river with stronger tones to suggest the shadow under the rocks themselves.

Also it is a good idea to bring in some warmer colour, especially in the foreground.  In this case I have used yellow ochre and light red to indicate bushes and grasses. This helps to create a sense of recession.