01 Jan, 2015
Background
Purple background of coarse rough surface
20 Dec, 2014
Dark background with diagonal stripes
Fancy squares formed by dashed double lines
12 Dec, 2014
Gray micro-rings
29 Nov, 2014
Background with shades of gray dots
24 Nov, 2014
Rough dark surface
20 Nov, 2014
Small dots on a blue background
14 Nov, 2014
The circles with dots inside on a light background
Large circles with dots inside on a light background
13 Nov, 2014
Blue carbon
08 Nov, 2014
Background dark surface, dotted with points