What signs to look for if noid is getting too much light?

[QHMaverick]

I've definitely been bitten my the orchid bug. My colletion has grown from a single Phal "noid" to 5! Four of them are Phals, one of them is a Paph.

My question, I have recently moved them from one location to another within my house. They were overwhelming my kitchen counter, and I wanted to have them in my studio so I could enjoy looking at them more often.

They were moved from a west facing large window, which only gets direct sun for a few hours in the afternoon to a huge south facing wall skylight, which is over the window seat they are now residing in. They get a fair amount of direct light in the morning into the early afternoon.

Everyone appears happy, but I'm curious, how do I know if they are getting too much light? What are the signs that my plants aren't happy with the new location?

I have noticed a slight lighter color in the green of the leaves and one of them has a split in the center of the leaf. I don't want to kill them from my lack of knowledge. I will try to post a pic later today.