13-29 geometry

13-3 Color dots

13-30 geometry

13-31 geometry

13-32 geometry

13-33 geometry

13-34 geometry

13-4 Color dots

13-5 Color dots

13-6 Color dots

13-66 Abstract geometry

13-67 Abstract geometry

13-68 Abstract geometry

13-69 Abstract geometry

13-7 Color dots

13-70 Abstract geometry

13-71 Abstract geometry

13-72 Abstract geometry

13-73 Abstract geometry

13-74 Abstract geometry

13-75 Abstract geometry

13-76 Abstract geometry

13-77 Abstract geometry

13-8 Color dots

13-9 Color dots

14-1 Feather

14-10 Feather

14-11 Feather

14-12 Feather

14-13 Feather

14-14 Feather

14-15 Feather

14-16 Feather

14-17 Feather

14-18 Feather

14-19 Feather

14-2 Feather

14-3 Feather

14-4 Feather

14-5 Feather