悠然 from China: 2D 7-stage Patterns for Sequence Summing
悠然 from China: one-piece Xu's sewing kit Zhen xian bao (designed by 悠然)
悠然 from China: Mobius Strip
悠然 from China: pink corrugations
悠然 from China: chess board and 8-queen puzzle
悠然 from China: 山重水复疑无路
悠然 from China: star unlimited by Mélisande*
悠然 from China: Corrugation by Andrea Russo
悠然 from China: corrugation
悠然 from China: another Sierpinski Triangle (designed by 悠 然)
悠然 from China: Sierpinski Triangle (designed by 悠 然)
悠然 from China: small mountain 小山
悠然 from China: hexagon flagstone,Negative Space Stars and others
悠然 from China: Penrose Stairs back designed by 悠 然
悠然 from China: Penrose Stairs front designed by 悠 然
悠然 from China: Triangle Tess Pattern 2 designed by Daniel Kwan
悠然 from China: stars alligned in Sierpinski Triangle backlit (designed by 悠 然)
悠然 from China: stars alligned in Sierpinski triangle inclined (designed by 悠 然 )
悠然 from China: stars alligned in Sierpinski triangle front (designed by 悠 然)
悠然 from China: hexagon twist
悠然 from China: triangle twist
悠然 from China: queer square twist
悠然 from China: various puff stars
悠然 from China: July Weave: so many squares
悠然 from China: small ones
悠然 from China: tiny cube tess
悠然 from China: Chinese dream
悠然 from China: Windows tessellation