Pastel Island

Island painted with pastels, it has a system of caves that lead to three sides of the hill. works on land too.
The texture size of the whole island is 2048x2048, which means it doesn't have much definition. I think it's enough depending on what you are trying to do.
Scaling down to 0.66 you will still be able to walk through the caves and texture definition will be a bit better.