Thats very pretty. It looks alot like one of my amelanistics. Mine are two different varieties- I dont know the actual morph name, just that they have red eyes, and basically just the same colors as yours- so I just call them amelansitic.
As for snake bites- corns and snakes like that can draw a small amount of blood, but I have never found it too much to worry about. It doesnt really hurt because they have sharp teeth, so its a fairly clean cut. I have only been bit by any snake a few times, and the only one that was actually painful was my racer, because he just kept chewing and chewing and chewing. I was doing a show at the time too.

Main thing is just to make sure and wash the wound good, and make sure your reaction is very calm and not worried, so your child doesnt get more freaked out than she already will be.
Bites from a cornsnake are rare and usually only happen when they mistake you for food, which only happens on the initial pick up. I have never had one try to bite once they are out of the cage, as long as you are gentle.
Perhaps you should get it out for her, then let her hold it. Any younger child should be supervised with any snake anyways- if for nothing else, to make sure they dont lose it. Then you can make sure the snake seems calm.
Only other thing to watch is when they are ready to shed- their eyes cloud over, and they can get "cranky" since they cant see well.