I am wearing a black and white wedding dress. its an a line with a cathedral length train. We originally were having our wedding in the winter. We have had to change it to a july wedding. It will be near water( not at a beach), like a park type setting with a gazebo. My fiancee is thinking of changing their attire to khakis pants and a shirt and tie...my girls will most likely be in knee length dresses. Our colors are white, black and light blue. Will we all look ok if they change to the khaki look instead of suits or tuxes? thank you!!