Not very Halloweenish (which would be my normal subject matter for this time of year). The pattern reminds me of something. Maybe it's a memory of legos, or of a chunk of fool's gold I found when I was a child. There is just something vaguely familiar I cannot quite put my finger on....

72in x 116in @ 150ppi
zoomable: http://mattlindley.info/post/2012/10/26/Blocks.aspx