Ah, you beat me to the post!

Ok, I've uploaded the geographical/climatic adjustments. I apologise for my description not being clear enough.

Please note that the huge mountain range where the Seven Jewels are located should also have a desertic climate. The island just south of that should be slightly moutainous, I suppose, if we're going to have realistic geography based on realistic plate tectonics; I'm sorry for not clarifying this either (I just realised I didn't).