This fabric is full of symbols.
According to my book 'Beginner's guide to aboriginal art' I have located kangaroo tracks, spears, footprints, a campsite and the wavy lines seems to be water/blood. 

The largest graphic circles are 2¼" (55mm) in diameter and the smaller circles are ¾" (20mm).

The large black shapes are 6¼" (15mm) in length and these run in rows sideways across the fabric from selvedge to selvedge.

The background colours are steel blue, pink/rust red and a splotch of tan.

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100% quality cotton fabric.

39" equals 1 metre.