They are your dramatic eye.

I mean your quick perception of character and of the way character shows itself in looks, tones, dress, etc., and in your keen sympathy--with all kinds of people--Now, these are the requisites for a novelist.

Added to that your humour.
You ought to make a novelist of the first class.

But you must not expect to do it this week or next.

A lasting, real success takes time, and patient, steady work.