Sky and Island concept - Fields Level - Natasha

Here are the concepts for the sky in the fields level

This is the sky background for the level, consisting soft, fluffy clouds with subtle hints of rainbow, on a backdrop of blue.

 Here are 4 concepts for floating islands in the sky for the fields level.
They consist of dirt, rock, tree branches/roots, grass and clouds

This floating island, floats because of a tree that grows on it. The Cloud tree.
The tree instead of having leafs, grows clouds, allowing the island to float in the sky.