Mine are tucked in as well. I didnt do the full dominant wind break wall like you ( that looks like it will really block out the wind) but they are insulated, wrapped, added a top entrance, feed box, quilt/insulated box, shim vented the top with a moisture board on as well... I just added a vented bottom board a few days ago (thin sheet of peg board). They sit on a 2x10 box frame which I hope acts as a wind break from too much draft off the bottoms... they have a nice hat of snow on them which tells me at least they are not losing heat out the top. They went to winter in better shape than I thought they would... I had believed they went queen less in both hives but must have requeened or just had a slow down. Anyways... its a waiting game now, if we get a warm day in a month I will maybe crack the hive at the feeder board to see how they are fairing. First year hives .,,, so its still a learning curve thing for me.
This winter Im going to build up for another 2-4 hives... I would like to split if I can in the spring ,,, and want to try and capture a couple swarms - 2019 goals.