~40s to 50s ranking mage, what can I do better or stop doing

[Telepatra]

Title says it. I want to be a better player, I know I can be a better player, yet here on what essentially IS a tank and spank fight, I am still doing something wrong, and I don't know how to parse a log and see what they do that I do not.

Thanks in advance. My character is Telepatra.

https://www.warcraftlogs.com/reports/41 ... amage-done" target="_blank


EDITED:
Here is my armory, my gear and talents are the same during that fight as they are in the armory here

http://us.battle.net/wow/en/character/p ... tra/simple" target="_blank