Merry Christmas, everyone!
Here we have two Christmas commemoratives from Royal Mail. Both were originally part of sets.
The one on the left was part of a 2020 set, and depicts a glass window at St. Andrew's Church in East Lexham, Norfolk. The one on the right is part of a set that depicts the Nativity.
These won't be the last Christmas stamps I get, and I expect that we will be observing a whole sheet of these pretty soon.