Sean,
Really, the last four or five holes at Burnham are all part of a fantastic finish.
14 and 17 are a couple of terrific par threes with great greens, 16 is a neat little short four with another neat green.
The most memorable part of the 18th that I can remember is the second over all those hollows and broken ground, but you are right, with the drama of the land, the options and strategy, and the need for fine judgement on the approach, it is one of the best closers in the UK.
There is a vague similarity with the closer at Porthcawl, in that you have a second over rough hollows to an away sloping green, and that too is one of my best, and most favourite finishers in the UK, along with those at Beau Desert, Southerndown, Royal Aberdeen and Dornoch.
Great pictures.