Family Portrait

Once upon a time, in a land far far away (for many of you), back when there were only 8 grandkids (I believe), there was a Grandchildren/Cousins portrait taken. It's very cute, hanging up in Bubbie and Zaide's house. All those kids with cute little denim and white outfits, half of them crying hysterically. And yes, I have heard the horror stories of trying to get that picture taken.
Can you guess where I am going with this?
How does everyone feel about another Grandkids/Cousins picture? Seeing as there are now 15 kiddies (ok, Oldest - maybe you aren't a Kiddie...maybe...at least not a little one). And seeing as we are coming up on a "reunion" (?) that may not happen again for awhile. I think it's that time again!!!
But we probably don't need to go to a portrait studio (do they even have those in Israel?) From what I hear, Simmy's backyard is nice. And we do have a major par-tay coming up too.
So the question is clothing. We can attempt a pre-Shabbas picture (But things may be a little craaaazy) with everyone dressed in their Sabbath best. And we can remember to take a picture at the wedding this time (since we didn't at the last 2) assuming everyone is awake at the same time! Or maybe we can also try a casual picture (More like the one from long ago). Should we plan a color scheme? Stick with denim and white? Doesn't matter?
Any thoughts?