For my male character I wanted to use a character from an existing IP but none of the characteristics just the look. Is that alright? I can absolutely write up a new couple paragraph race origin for him if needed. 

Also I assume that the story will take place in a multiple galaxy reality? Or is it easier to keep it all in the milky way? 

Sorry for asking so many questions just want to get the facts filled out, figured the questions could be useful for other players.