Yikes! I thought I'd responded, but apparently not!
Thanks everyone for the kind comments. Progress has, unfortunately, been almost nonexistent the past week, but I hope to do better this week. I'm thinking of making the POV wider and more panoramic to capture some more of the terrain on the left side of the image. I also want to give the snow more color variation and texture to mimic the look of real life glaciers rather than a solid bed of snow.