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[theanalyst]

I agree with others. They appear to be retaining too much water. Hopefully, the new pots will help.

[ula]

Hi,
I agree with all of the advice given so far.
Numbers 4, 6 and possibly 1 (because you say the flower is yellow I'm inclined to think it's not from Latouria section) are from the Callista section.
Number 3 is a nobile type den (full winter rest with high light and barely any watering). Number 2 could be a nobile type as well, but I'm not certain. Number 5 is probably something from the cattleya alliance judging from the pseudobulbs.
Good luck, I hope all of them flourish for you!

[Orchidstarter]

Unfortunately I didn't take a photo! The roots are rather thin as opposed to thick. When it flowers again, I'll take a photo and post it and ask more questions.

It was my very first orchid that I purchased at Mt Tamborine from a road side plant sale. It developed my interest and now I have quite a few.