The pbulbs were plump when the plant was introduced 1month ago but now there are wrinkles on it .
I have been watering regularly 1-2times a week nor do i find the humidity too low.......
and Some people suggested that this is normal when the plant is growing new sprouts...
looks fine to me, photo 2 has a healthy root and new growth.
My understanding of cultural requirements is that 1) they need to be repotted annually and 2) the pot needs to be big ( small? ) enough to contain only 1 year's worth of growth. Your pot seems too big......but then again your plant seems fine. Mine is in a 3.5 inch pot with 3 bulbs and 5 new growths. That gives you an idea of what I mean....
I agree - doesn't look bad - pbulbs will wrinkle slightly as new growth gets going. If the new growth is coming in smooth (not crimped) I don't think there's a problem.