Placement for Best Light for Phals, Onc, Catt & Enc/Epi?

[Jenna09]

Hi Everyone

I am trying to figure out the lighting for all my different orchids...and I think I must be doing something wrong.

Some of the Phals seem to be very happy, others not so much. Some have new buds developing, while others buds dried up and fell off with no new growth.

I had my Catt, Oncs & Enc/Epi Hybrid in a different window because I can keep my dogs out of that room (sun sets on that side of the house so they were getting afternoon/evening sun) but the big Oncidium dropped all of it's flowers after a month and it's spike died off as well. My mom bought this orchid for me and I don't want to loose it. My mini Oncidium seemed to like that area and so does my Cattleya.

As of yesterday I moved everything onto the same area with the ones that prefer more light closer to the window.

Any suggestions? Pics attached of their current setup which can easily be changed. Is this a lighting issue? Or Am I maybe not following the right train of thought and it is something more along watering/fertilization?

Pic 1 - Where everyone is sitting today (pic of room so window sizing can be seen, not sure if that matters or not)
Pic 2 - Oncidium when I got it in bloom & old placement
Pic 3 - Oncidium now...
Pic 4 - Mini Onc "happy"
Pic 5 - Cattleya "happy" with new growth
Pic 6 - Enc/Epi Hybrid new so it looks good.
Pic 7 - Enc/Epi Hybrid roots/bulbs
Pic 8 - Happy Phal?
Pic 9 - Happy Phal?
Pic 10 - Happy Phal?

Thanks
Jenna