A good CS, overall. However, there were a few things that were overlooked or misinterpreted. In no particular order, I'll just go from top to bottom. 

From which region does she originate? If it's not canon, you are free to create your region. Exactly when did they move to Hoenn? Did they immediately go to Littleroot Town or did they begin elsewhere? Regardless, I believe the Johnson's and Arami's would be quite familiar with each other. I'd be more than happy to flesh that out with you.

I wanted to see unique/personal items in the "Items" sections. The number of Pokeballs, potions, etc. is largely irrelevant, unless you were going to keep close track of it and use it throughout the story. The Gauntlet has a Pokedex and Map built in, making  them superfluous to own alongside a Gauntlet. The "Standard Applications" are applications that comes with the Gauntlet.

The moves are pretty strict but can seem inclusive when I say "Pokemon can know an unlimited amount of moves." I want Pokemon to stay true to their typing and physiology. You can branch out with moves that go with their personality and characteristics, but it can't go into changing the "natural" chemistry of the Pokemon or adding or subtracting to their inherent typing. I know it's vague and contrite in the OP, but I didn't want to write a short story on the mechanics of movesets for this RP. But I'm not against working with you to sort it out into something with which we both can work.

I don't see how Arcanine can make its tail like iron since it's not rock, ground, or steel type. 

Metagross is not a Ghost or undead which makes it illogical/impossible that it can use Shadow Ball.

Milotic isn't an Ice type so I don't understand where it gets it's ability to freeze its water.

Dragonite is neither a Ground, Electric, Ice, or Fire type. It's not really heavy enough to perform Earthquake without being a Ground type. Dragon's have plenty of moves to utilize without needing to go into other types.

Also, the height/weight sections was so you could make them smaller, bigger, skinnier, or fatter than the "average," which is what Bulbapedia lists. So there was no need to put them if you weren't changing their physicality since it was an optional section.