I think I got it. Are we allowed to create more than one character?

1)

Character Name: Ernesti Pommiva

Trainer Type: Hiker

Appearance: A stout man often wearing 'lumipuku' i.e. a white military-like uniform.

Team: Empoleon, Steelix, Toxicroak, Golem, Mamoswine, Kingdra

Birth City: Snowpoint City

History: Has lived in Twinleaf Town as well, that's where he got his first Pokemon Piplup when he was 10. Gave up with school at the age of 13 and started wandering caves and mountains.

Starter: Piplup

Main Type Use: Ground

Other: Believes the Legendary Bird Pokemon Articuno lives in Sinnoh and has dedicated his life in finding it. Specialized in not only Ground, Rock and Fighting, but also Ice.

2)

Character Name: Ka-Sumu Utunen

Trainer Type: Cool Trainer

Appearance: A brown-haired girl often dressed in Goth style.

Team: Venusaur, Mismagius, Gengar, Honchkrow, Kingdra, Butterfree

Birth City: Pallet Town

History: Ash's cousin. Left Pallet Town when she began her Pokemon journey at the age of 10.

Starter: Bulbasaur

Main Type Use: Ghost

Other: Likes Heavy Metal.

I'll perhaps create more characters later.