How to ski chopped up powder when it's gnarly steep?

I spent some time at Chamonix this weekend and I had a ton of fun. It snowed a lot and there was a lot of powder to be had. At around afternoon the snow was all "tracked out" and there were huge, soft moguls everywhere. I was still able to ski it, but pretty careful with a lot of turns. I tried to turn on top of each mogul, but sometimes my skis just buried inside of the soft moguls and I had a rough time there.

Any special things I should think about when going through and above chopped up powder?

I put up some images for reference, but these weren't the really step parts.