How to care for my new orchids miltonia and cambria and how to check their shape

[Catharina]

So I did it again, I got some new orchids while I visited IKEA, for some reason they are the only place I can find anything other then phalaenopsis and denodrium nobil.
I have never had a miltonia or cambria before so if anyone could give my any advice on how to care for these beauties and how their conditions are.
The miltonia seems a bit dried up and of curse as I´m writing this I saw a bug of some kind moving in it, I found some thing looking like spider web, green colouring and some texture on the bark that looks of to me. I can’t see a lot of them on top where it’s dry, but I took it out from its pot and can see a lot of this spidery looking web the bugs in this seemed white or silvery but was to small to get a good look.
I got a closer look on the cambria and think I can se some of the same ”web” there and the brown bug I found on that plant. I cant get a good look on the bug or how many there is but the insects I saw was 1 mm or less. Should I report or do I need to treat them?