This is a fantastic color scheme for your beach photo session!  The only thing I would lose is that OWL necklace!  The hats are so cute! Please note the color scheme blends with the sky and sand!  Button down shirts on men are always dressier. Can't you just imagine a little girl lifting up that skirt for a wave coming close? SWEET!!!!  Also remember fussy collars are a problem in the wind. Looks like Mom's dress may blow up into her chin, so be aware of tops that have extra material like that.  Bring bows, headbands, or barrettes to keep the fly away hair out of the eyes of your babes.... I usually have some extra in my "bag of tricks".  Hope this inspires you as you think about what you might want to wear for your family beach photography session! Have a great day!  jan