MMO control camera question

Hello, we are trying to bring the camera controls our game similar to World of Warcraft, today we have a very close version but not end to convince us.

In the picture you can see both angles at which we are working. The first (α) refers to the “boom” and the player is free to move it and its pivot is within the character.

The second angle (β) is that we are adjusting values to graduate the hight, between 0 ° to 10 ° and is currently in 5º.

These are our base ideas, we have doubts about whether we are going on the right track. Someone has done something, or can enlighten more about these controls?

Examples with 0º,5º and 10º.