I can't really tell from the pic, but unless there were 2 daddies, all the orange ones are boys and all the tortie ones are girls. Orange mama cats can only have orange male kittens, and their female kittens will be orange if the daddy is also orange, or tortie if the daddy is dark. Obviously the torties had a dark-colored daddy, so if there are any orange girls that means they have a different dad. But to keep things simple, until it's easier to tell, you can probably assume the orange ones are all boys .