itching on renanthera and vanda! i need help!

[frostedeyes]

i bought a vanda which again no roots (medium is osmuda fiber brick and some sponge. after few weeks - months it seems that the leaves starts to wrinkle i have check the leaves on top it seems okay pictures below. the roots are growing and it seems to be okay should i be alarm or this is just part of the cycle.
for the renanthera again i bought the ones with no roots. the lady told me to just pot it with medium ( i use charcoal and moss on top) the leaves well im worried thought of this vanda and renanthera seems to be the same family (i think). pictures are below. thanks