There's nothing "supposed" to be anything. It's whatever combination of lever positioning (how high on the curve it is) and drop angle works for you. It also affects the angle of the section on top that leads to the lever, so that matters too. Most experienced riders would try to get it in a way that they are reasonably comfortable in all handlebar positions, and most comfortable in the one they use the most, while at the same time ensuring that the brake levers are easily reached from the drops (this changes as you move the levers up or down). I have my drops angled towards somewhere halfway between the rear brakes and the hub, with the levers positioned so that the hoods are angled slightly upwards. I am more comfortable in the drops when they angle down a bit, something like 10-15 degrees.

Do you want to look at the bike, or do you want to ride it?