Here's the work I managed to do on my world earlier.
I started by smoothing out some rough areas of terrain out.
https://farm3.staticflickr.com/2901/14476904754_b6770ea506_z.jpg
I still had more smoothing out to do here.
https://farm4.staticflickr.com/3868/14474736151_d2ba938a53_z.jpg
I got more work done on this area.
https://farm6.staticflickr.com/5494/14455013766_9fe7e941c7_z.jpg
https://farm4.staticflickr.com/3900/14291530128_5d8d82c4c0_z.jpg
I started working on some more advanced sculpting near the edge.
https://farm3.staticflickr.com/2918/14291542388_678ae97bdd_z.jpg
https://farm3.staticflickr.com/2929/14291489029_71293e6f54_z.jpg
I was trying to get some higher hillsides around the edge.
https://farm4.staticflickr.com/3837/14478123345_d8a45fe394_z.jpg
https://farm6.staticflickr.com/5473/14291492169_5f001c0154_z.jpg
I wanted to make it look like it is in a larger canyon area.
I had a browser glitch and had to reload.