By saying that i didnt mean you to make lines at angles… I was only giving a very simple example of dynamism that how a tilted line in elevation can look to be dynamic.
As this is your first design problem, the only way for you to get what you want is reading more and more as in architecture there is no simple rule to solve problems. Read and experiment, give more time to applying (draughting and sketching) your ideas.
Ching is a very good book. Try to understand the illustrations, you will learn a lot from it.