The scene looks great but I have critisisms. The shadows for the canoes are to sharp for me, I feel like under the water they would be rippling and alot softer. Also, i prefered the first coastline. Otherwise i think the clouds look great and the way the mountains fit ferpectly.
EDIT: Would I be able to grab hold of the .tgd for your planet picture, I've been trying my hand at it and i cant get past that plastic look