Unity and solidarity defines your family. I can see all of that from the pictures. They all look interesting to be with and have given you the lasting joy you deserve. Even though your parents are no longer there to continue, they have passed unto you and your siblings a legacy which you all will have to live. I am not surprised that you are not in close communication with your half siblings. It is something that happens in most families I know. Now, your family is large and all look happy and loving. All the best Sir.