This is Lina's stage-2 Sierpinski Tetrahedron, a close-up in nature. Her tetrahedron and the Rubber Tree (Ficus elastica - decora) look good when placed together. Print on "Landscape" setting, found under "Page Setup" or "Print Options".
I'm rather fond of this picture, with the tetrahedra and leaves set to the side of the picture. Lina did a very nice job of making her family of Sierpinski Tetrahedra. If you want to know how she did it, there are step-by-step visual and written instructions on this site on the Build Your Own Structures page.