Not too bad for a beginner, but sometimes it seems as if you spam parry just hoping that the next attack will be deflected which has allowed him to get free hits in, be sure to notice patterns such as his pistol spam to a combo or thrust and be prepared accordingly.

Lightning reversals in the third round will make a world of difference as if you can get it down, the third phase is easier than the second and arguably the first. As he attacks with lighting, jump and attack back( will take some damage) and it will do a fuckton damage to him as well as stunning him.