Filing business taxes for the first time

[Rebekah5280]

Ok, so I already filed my Federal Income Taxes. I'm trying to file my Combined Excise Tax Return and I can;t figure out what my Tax Classification is. :\
I'm a family photographer. Would I file under:
Services & Other Activities and/or Gambling Contests of Chance (Less than 50,000 a year)
Retailing
I'm still looking through Washington States DOR to try to figure it out, but its not black and white and I was hoping someone with previous experiences would help me out with this.

Thanks!
Rebekah