The water is at the right temperature when it is not hot nor cold to the touch.
The amount of olives and tomatoes is up to the baker.
To test to see if the bread is done, tap the bottom. A hollow sound should occur.
Preferably, use special bread flours when making bread.
Baking on a hot stone and creating steam will improve the crust.
Flour the bread proofing basket really well to be able to remove the bread.