I'd bake that for an hour in a preheated (but you MUST have a separate oven thermometer in your oven to be sure of the temp!) 275 degree oven, in a baking pan, covered well.
We have to remember to cure our clay completely or it will break eventually.
If you are baking in a small oven (toaster oven), being sure no part of your sculpture is too near a heating element is important. I bake in my big home oven so it's not something I have to think about when I bake.