The first looks like it has Phal equistris in it's parentage.
The fourth
could be a Phal Princess Kaulini ( Phal. violacea and Phal. amboinensis) -
http://www.bedfordorchids.com/pk.jpg
Princess Kaiulani
or
any one of a variety of Phal Brother Sarah Gold -
phal brother sarah - Google Image Search
The second, I have seen something similiar in my local nursery called either Phal or Dtps Momentos but I can not find it online so I can't be all that sure.
They are just guessitimates ..
Bedford orchids has wonderful articles on the making of Phal hybrids -
Bedford Orchids