Check out Capucine’s essay for an incredible example!!!
Thel Mina does a really great job of always linking what is happening in the language/devices/style/what the author is “doing” to her thematic argument (how the language choices enhance a point, develop a theme — she always links language to meaning).
Make sure your thesis and your essay refer to the main concepts asked of you in the question (and reguarly link back to these concepts/ remind us of the the main goal + point of your argument)
Try to lengthen your essays a little more 🙂