if you're going to do anything in year 11, please let it be figuring out what your english teachers prefer, your essay may be the a really good one, but if your teachers don't like it, then you're doomed. learn what they like and don't like. what you're planning to write for the hsc may not look like what you write in your internals because of different preferences, but it really comes down to your school. as a general rule of thumb, try not to write your paras on themes, more so on value statements or arguments