The reason you got the score you did was you efficency. Sadly, its just not there, nor is the creativity.
Here is also a quick synopsis of how I grade a deck.
I initially look at the deck in which someone sent me, I start with the pokemon, then the trainers and then the energy. I look up all of the cards, and form my own strategy of what you are trying to do.
I then think of ways to make this deck better, add this, subtract that, etc. THEN, I look at your strategy and explanation of your cards. I then basically subtract some of my ideas based on how you evaluate a card and why it is more usable than something else. I then begin to grade the deck portion and the card usage. After all variables have been reviewed, a score is given to the Deck and Card Use. Then I proceed to the creativity. I see what options would have mad it more creative, why does it deserve to be called creative, have I seen this deck before. Is it a complete basic strategy, etc. After an evaluation of over an hour, I make a score. This is all done as I get your entries. Then once I am ready to post the scores I look it over once more, and I have made some changes to lists here and there, but normally I do not. Then I submit my scores for your deck and carry on my life, basically.
IDK if this will help you at all, but that's about all I can give you. As for your list, Vaporeon. I would have liked to see some more creativity. You made a boring Vaporeon wall...not much else. throw in some better ways to make it a tank, ways to make his attack useful, create synergy between trainers. That's basically what you didn't do IMO.