It looks to me like fairly new comb. I have a similar situation in my hives, the bees are building comb and being hygenic so the queen will lay eggs in available cells and them move to another frame. Later she will come back and lay more eggs around the ones already developing. This appeara to me to be what is happening in your case. It is normal in a new package or swarm.
Also, with new swarms or packages the bees will temporarily store nector in cells in the middle of the brood rearing area because they have no other place for it. As more comb is build the bees tiddy up the area and fill in the brood area with brood and storage area with nector/honey.
Taking into account a degree of hygenic behaviour and I would have to say your bees, if newly hived, are acting normally.