Screenshot 1, Ascend to Olympus:Sorta good detail but there was nothing going on there but a cinematic, and Arkantos facing multiple underworld passages I think you should add some excitement and not just him looking at the underworld passage and zeus telling him to,"ascend to Olympus."
Screenshot 2, Down the hill: Poor detail with sorta good mixture of terrain. And needs more trees or more excitement. Something that you could have done better is them running down the hill with hunters chasing them ;).
Screenshot 3, Grazing at a river: Good water detail but then you get that problem again, needs better land detail. I like the idea of the waterfall but i think it should be at another spot so we could look at it. Next to the end of the river there is a wave, let me tell you this: its out of place. Again zebras wouldn't fit into this type of landscsape, and needs more excitement.
Screenshot 4, Silent snow: Great screenshot indeed, the animals are in their regular habitat, there is good detail, you made a good sized dock. The hills made it cool with the leaves blowing from trees on the hill. Good use of wolves, and ice. Also i like the longhouse in the backround it adds action ( in a way).
Screenshot 5, Sunset Island: Poor indeed, it looks like a mini volcano full of water. And the statue, bad choice. Good water texture but, one thing, there is a wave on one side of the island and no others.
Screenshot 6,The Camp: Great screenshot, the animals are in their habitat, and the terrain texture is perfect. The tents add greater effect too. So does the shrine, the firewood, the bottles, and the fire. Excelent indeed!
Additional comments I liked some of these but most of them were very poor, the only good ones i liked the best was Silent snow, and The Camp.