A nice bit of writers' serendipity here.
I've been sorting through all my old pictures of Ethiopia and I came across this one - a wall poster in a juice bar in the one-horse-town of Wukro. Apologies for the poor definition - there wasn't much light - but though I've no idea what it is advertising, it seems pretty pertinent to my writing! It depicts, I'm guessing, a Titan thrown down to earth during the battle with the gods.
What it's doing in a bar in Africa I've no idea, but I know what it's doing in my book :-)
UPDATE: a quick search with Google Images suggests that it's based on street art by Kurt Wenner, which is well worth checking out.
Here's his website