New orchids (cattleya iricolor & bulbophyllum ambrosia) not looking too hot

[Adogw]

Hello, I recently purchased some new orchids, a cattleya iricolor and bulbophyllum ambrosia, and they aren't looking too hot, the cattleya has a yellowing leaf that has split down the middle, and the bulbophyllum has black and red spotting, with one leaf looking almost black, any way I can save these guys? Any help appreciated!