...and feeling very pleased with myself!
It's not the largest structure ever seen, probably 2.5m long, 1m wide and 75cm tall but my 9 year old daughter wanted to help and I thought it best to complete a project together rather than only get part way through a larger bed.
I hope it's right, this is what I've done:
removed the turf
dug about 30 cm deep
put down very rotten wood in decent size chunks
put down thinner branches
added upturned turf
added a load of rotted horse manure
topped off with the soil I had dug out of the hole originally, and a bit more
I'm hoping this is right - we are going to extend it so please let me know if it's wrong!
This counts as my first ever permaculture project!