"Across the dunes to the sea...the moon dances in quiet darkness"

I have decided to enter my painting "Across the dunes to the sea...the moon dances in quiet darkness" (Oil on Canvas 102x102 cms) into the Fleurieu Art Prize this year. This will mean entering 2 art competitions in 1 year...I have never entered any prize before in 30+ years of professional practice!...I wonder, why now?