Nice work! I always love when models work out to be minifigure size and still manage a good level of detail. I like the organic effect the curved elements manage, especially along the side of the body.
The Mammoth is astonishing! and the minifig's aren't bad either but... I would clothe me thic if i lived in the snow... but the mammoth is amazing, great use of hats and barrels(just like the one said under me:P) it has a nice shape and it has the right size. nice horny things, also the right collor. nice landscape too. overall a great moc!