Nice pictures, Steve! I see the feed bowl there, pretty centrally located. I can see how wasps could be attracted to that, too. This is your first and only hive, right? The other thing I would keep an eye on is bickering at the bowl. Being out like that, someone else's bees may find it. If not and you like your system, great! If it does happen, you might need to change to a feeder of some sort.