This is similar to other images he has posted. The gas giant is supposed to be in a different star system. Personally I think he was pretty smart to use Jupiter for the image map. Quick and dirty gets the job done, used to be a phrase used back when.
He's just starting; it would be a lot of learning to do this procedurally.
Also, if he behaves from now on, let's give him a chance. He's 12. I was very obnoxious then. I probably am still. This is a great program, Terragen 2, for him to show interest. It can help him learn geometry, math, and science.