Worried about virus in collection!

[Pelepel]

Hello Fellow Orchid Friends,

I'm a wee bit worried about my beloved plants. I want to see what others think is going on in these pictures. Each picture is a individual orchid. I'm scared they have some virus, or multiple. I know, jumping to assumptions is bad, but, certain ones were fine then started to get the dreaded "signs" on healthy leaves. I know there could be various things wrong such as bacteria, fungus, water, light, pests...so on. An experienced eye and general direction and I will be forever grateful! Still learning only after three years.

Picture 1: Peristeria elata (got it super healthy from Kawamoto Orchids last May, leaves got a pitting..not sure if that is is common in species, growing in S/H)
Picture 2: Cattleya seedling (bought it like this, and just picked it and two new growths that appeared healthy just fell off! )
Picture 3: Oncidium Sharry Baby
Picture 4: Dendrobium Spectabile (Got it to spike, yay!)
Picture 5: Bllra. Diana Dawn "Mt. Pisgah"
Picture 6: Encyclia cochleatum x Encyclia lancifolium. (aka green hornet)
Picture
Picture 7, 8,9: Den. Kingianum (just got that the other day, grower said leaves looked like that because it is so crowded, just want to make sure because better judgement said not to buy it)
Picture 10: Neo hybrid (rainbow)



What do you guys think? Thank you SO much. (I have several plants I'm concerned with as well, but these are the mains).