I agree with Starman re your Odontoglossums and Miltonia not liking too much sun. All the orchids you have are south American so I'm not too familiar with them but I have experience with growing those genera.
Red Star is a hybrid name, a bit like the "Miranda" in Nepenthes Miranda. If you tell someone you have a Miranda, without the Nepenthes in front, it doesn't mean much.
I don't necessarily agree regarding most orchids not liking sun, there are plenty from over this way that do. Virtually the entire group of terete leaved Vanda, many Dendrobium (some are even adapted for almost desert conditions, such as canaliculatum), and I grow some Oncidiums, Renanthera and a few others in full tropical sun with no ill effects. It very much depends on the orchid and also how long the plant is given to become used to the sun.
If you take a soft green plant and put it in sun it will burn, this even applies to cacti.