Orchid suggestions?

[shams]

Ok.... so I have pictures of my orchids though the oncidiums were much nicer when I brought them home a few weeks ago and they were in full bloom

I also have pictures on my dying trio.... I've repotted them this morning, but the roots are all whitish and stringy, though not dead yet... ( I don't think). If anyone has any advice in bringing them back, I'd appreciate it. Especially my Psychopsis! I think it may be a lost cause... but it's been declining since I moved from an apartment to my house. I don't know where I'd find another one!

The last picture is what it looked like when it was blooming in my old place

I'm hoping I'm not killing the new ones already.... I was doing so well in my old place....