Tropicana/ixorus

1st September and I nearly didn't get this done in time. Fortunately it suddenly popped up on the English Channel of the Muster Mixture Challenge and reminded me that I had thought of doing this on a Black Tile. Black tiles lend themselves to simplicity I think. I simply drew Icorus but replaced the moon shape with the arch of Tropicana. It turned out more effective than I thought. I didn't realise those arch shapes would line themselves up in circles.