I really like the feel of the place, which is impressive considering it's procedurally generated. I did run into a few issues where an island didn't actually seem to be connected to any others (happened to be able to make a jump off of it, but it wasn't clear if the algorithm took that into account). I managed to find 10 gems before finishing, I don't know if there were more, but I did have fun looking for them.
Also, my apologies to the robot that was kicked into the water.