You have a variety of orchids which require different cultures. The phalaenopsis is the easiest (picture #1 right side). Picture #3 has a phrag and a dendrobium. The first picture (on the left side) is maybe an oncidium intergeneric and I think picture #2 could be an oncidium intergeneric also. You might be right about the last picture being a bulbo. Without a bloom picture I couldn't guess which one.