Odontociduim Burgundian leaves..dehydrated?

[JDawggie]

I had another question -- on a separate plant: Odoncidium Burgundian ' #2' .

This plant seems to be a robust grower, with new grow growth taking place after this past summer bloom, BUT the leaves look wavy and dimpled? Any idea why this is the case? I have included an image below so you can actually see what I am trying to explain.

My first thought was that it needed more water -- but I am hesitate to give water more than once per week? Any thought suggestions?

Man, I feel like my plants get super dried out in the Winter (due to the heat) versus the summer -- even with a humidifier going.

Maybe I need to water everything a bit more frequently in the winter because of the heat?

Many thanks,
Jared