Totally torn about bridal party

Okay, I'm ready to ask people to be in my party, but I think it might be too big....

I'm having a wedding of approx 215 people (inviting 270) and including us the wedding party would be 22 people:

1 MOH and best man
7 bridesmaids and groomsmen
2 Jr. bridesmaids and jr. groomsmen (is that what you call them)

I could eliminate 1 bridesmaid and one groomsmen, but does that really make a difference?

Do you think 22 people is too large or will be hard to photo?

Help, help, help!!!