That's a big compliment from you so thanks Ascension (at least that's how I'm going to take it ).
I have fiddled with the Wadi's so they can be seen, done the rivers properly and tweaked the forest slightly. I also added some clouds to one version but i think they may obscure the river so i will have to leave them out of my entry. They do a nice job of showing the major areas of precipitation on the map though and the rivers that this causes.
Not sure what else i can change now to improve it without inevitably messing something up!
With clouds:
withclouds.jpg
### Latest WIP ###
clouds.jpg