I have played my game 4 times so far. Right now it looks like the picture on the left, but I am making artwork like the picture on the right, so perhaps the next play will be easier to explain to people. Somehow I find that people find games with more finished artwork to be easier to understand. I found an island generator here which I am using for the card art.
I am currently considering how to change scoring, and also trying to make the splay mechanic more obvious.
I will write up the rules some time soon.