Here is the first one!

Im brown, if im shiny im grey.
Im mostly male but can be seen as female
I always have a girl's name

Who am I?

It is EEVEE!

Winners:
PokeManiac9803
SteelSkarmoryKate

Here is the next one!

Im yellow, I have red cheeks
I have brown stripes with the ends of my ears brown,
I also have my own creepypasta.

Which pokemon am I?

It is PIKACHU!

                                                                                       Winners:

SkylaPotter-Cloud
WingsofSunrise