3D Layered Sandstone Rock

I'm looking for a skilled 3D artist to create a realistic, layered sandstone rock for use in a product or architectural image. The rock should resemble natural, rough granite boulders and can be used in a product or architectural image... (Budget: $30 - $250 USD, Jobs: 3D Animation, 3D Design, 3D Graphic Design, 3D Modelling, 3D Rendering, 3D Visualization, 3ds Max, Blender)