Gregory Euclide definitely explores different mediums and dimensions in his natural works. Illustrations on flat paper, reliefs, large and small three-dimensional pieces venture into the genre of modeling while contrasting natural and geometric forms. I had difficulty choosing a single image to hint at the style of his work because he tries so many different things, definitely worth checking out more on your own.
His website gives a sampling of his work. LINK
His flickr page has a plethora of pieces worth checking out. LINK