Filling the moutain range part

 

The ridge of the mountain range is almost done and considering the colors against the sky colors. The initial filling was too greenish and they probably need to be a little darker than that although they're mostly covered by snow.

Just to test, at this stage, I put those two birds in the sky, which I regularly avoid. It's not so easy to make the shapes right with simple brush strokes like old sumi-e paintings.