I found a nice little 55 word competition, which I won't mention here because I left it on bad terms, but it showed me I could write Flash fiction. It didn't matter what the 'element/s' was/were, I could always write something good. I didn't win anything, of course, only clone writing won.
I then saw a fantasy novella competition and wrote a 13,000+ word story, a 'Christmas Carol' meets 'HHGTTG'....'TDX2' (Too Dull to Die)
A new book wasn't coming, so I searched for another 'challenge', and found the Iron Writer Challenge just as it started up...http://theironwriter.com/