We did finish the terrace this summer. The most involved thing was to build the brick wall (it was Pim's first) and apply the grout (a laborious three man job: Pim, his dad and me). We chose a sand toned grout.
Putting on the floor was easier. Pim had already pre-prepared the substrate with garden earth and cement some time ago, and the rain and people walking over it for months hardened it considerably. Several centimetres of "river" sand (it appeared to be washed beach sand, with lots of shells in it!), packed well with a plate compactor we rented, a layer of bricks (I really enjoyed this fun and quick job!), some more sand and compacting, and it's done :) the most laborious part of this process was to cut the bricks around the angled edges, which Pim did with an angle grinder.
