[s]^ Seconded. This is your show so it's up to you, but I personally would use your generator to generate the continents only, and rework all the grasslands, deserts, etc. yourself in photoshop, and manually place the forests, mountains, etc. It makes a very hard edge on the arctics, and that needs to be smoothed out imo. And the deserts aren't very realistic, as [@McHaggis] mentioned. Just disable 'Geography' on the generator (I found it on google) and the rest will just be photoshop.

Again, it's up to you though. I can't force you to do anything a certain way, I can just recommend it. I'd even volunteer to rework the map myself, if you'd like.[/s]

Edit: Ninja'd. Will respond in a minute.