Decks: Harpies (Tester) vs. Vampire Zombies (Testee)
Attitude -10/10
There was nothing wrong in this area.
Deck Build - 16/25
Vampires. Not exactly the most competitive deck for this format. It has serious issues regarding getting their monsters on the field, and this format, backrow is a huge thing. You'll only be wasting your time and resources with those high level monsters. Also, you really need to max our your extra. I recommend adding in Rank 4 and 5 Xyz monsters. However, you do get full points for creativity and originality.
Skill - 6/25
Honestly, you seriously lacked control over the duel. Yes, you managed to inflict damage to me, only because I wanted to save my backrow for the next turn. You managed to get a decent field, but after a while, I was easily able to clear it and for the remainder of the match, I saw very little to no control on your end. Also, your side deck, man. Honestly, your side deck doesn't really help to counter any decks this format, not even Rogue decks. I recommend looking up some good side cards and then adding them in. Some examples are: Mistake, Mind Crush, Overworked, etc.
Ruling knowledge - 10/10
No ruling mistakes on his end.
Misplays and Corrections - 9/10
Used Trap Hole on my Dancer, when he should have used it on Channeler.
Result of Duel - 0/20
Total: 51/100
Slifer Red = 0-59
You were pretty close to getting Ra Yellow. Next time you retest, I'm sure you'll be able to get it.