If I read your pics correctly, the first and the last show only one side of the outer frames. Pictures 2/3, 4/5, 6/7 and 8/9 show both sides of your inner four built frames.
The queen seems good and very active--nicely examining and laying in the outer cells that ring the earlier cells that she laid in and are mostly already capped. The inner cells that have not been laid in mostly contain nectar/honey which explains why she did not fill them in. In other wordds, the empty cells are not an indication of her ineffieciency at laying but rather an indication of competition over who gets to the empty cells first--the queen or bees needing available cells for nectar.
I didn't see any stored pollen to speak of, but that is probably only the result of the bees using it as soon as it's brought in, for their intense brood raising at this early stage in the hive's development. As the new generation emerges and strengthens the work force, more bees will be able to build up pollen reserves.
In other words, as you said, "I like what I see".
I would make only one recommendation at this point. Take note that the bees are building faster toward one edge of the frames. Except for the last frame, I would flip the direction of alternate frames, so as to encourage more construction toward the other edge of the foundation. The reason for not flipping the last frame is based on my assumption that there is no brood on the outer side, and I wouldn't, at this early stage of the hive's development, when the work force of nurse bees is limited, place an empty side between the last frame with brood and the next one.
It looks to me like you can expect this hive to develop really nicely as the season moves ahead.