Could someone draw over/photoshop my eyebrows? I am clueless on how they are supposed to look.

Hi, I've watched some tutorials on how to shape eyebrows, but for some reason when I look at mine, it's like my brain shuts off. Somehow mine are more but also less dense than those of the people in the tutorials. I for example really don't understand where the brow is supposed to start and end.

Could someone give some hints? Maybe draw on top of the pictures? Any help would be greatly appreciated.