Yes there is some scarring on the females, but overall its not too bad. I don't know that there is anything you can do about it, if your going to breed them. In the wild, heat within the earth is distributed and constant and the females can locate a spot where the moisture is correct and likewise constant. In a terrarium this is rarely the case, since mother nature is no longer controlling the environment its up to you to make sure that the moisture and temperature are correct and the best way to judge that is to see the eggs. My last two clutches had a 100% hatch rate. I beleive that I learned the best way to incubate them, thanks to everyones help on this forum. If you follow these rules and the eggs are fertile you will do well.
1. Use a submersible water heater type incubator, Hovabators and other dry element incubators may work well for colubrids but not for waterdragons.
2. Use a 10/3 ratio of vermiculite and water by volume
3. Put the vermiculite and eggs in a tupperware container within the incubator, this will further insulate the eggs from temperature changes. Perk just one edge of the tupperware top to form a slanted drip guard.
4. Make sure that the eggs are buried at least 75%
5. incubate at 83-86, hatching will occur in 56-61 days.
6. Use gloves when you extract the eggs, avoid turning them and touching them in general. Do not assist the young in hatching. They may spend twelve hours or more in the egg after initially opening it.