Steve, I've watched the first video, (shall see the others later, got to do some diy on daughters flat)
I'm actually in London. Never been to Fallow, it's in the poshest area south of Picadilly where the king shops. For me its where i buy caps. I bought Mrs A a £300 fedora in Lock &co of St James and was looking for a hat box. Their traditional leather hatbox is... £3000.00
I got a cardboard version 
You get the idea.
Fallow appears terrific value for top quality food.
We rarely eat out in Central London and now live near Durham.
However my daughter and I were in a small quiet clean restaurant 2nd floor of Selfridges and paid £14 for two eggs with flatbread (delicious) 6 for a bottle of water, 4 for hot chocolate, and 6 for croissant & jam.
£33 for a lunchtime snack; worth it when seeking refuge from the Subways and Starbucks.
Fallow compares very well.
Rare in UK to see fish heads. Commonly left on in Malaysia. Never seen a fish head dish but I'd love it.
As it happens we shopped Oxford Street on Monday (Barbour jumpers for me), Covent Garden yesterday (couple of Rohan jackets) and the final shopping day will be Bond St-Burlington Acade and St James area.