They don't sound very inspiring, that's for sure. Well, having travelled from Liverpool to London in a cramped mini-bus, and in a snow storm, been kept waiting at Decca, using unfamiliar equipment, John having a cold - hence George's not very strong voice doing half the singing, I'm not surprised. Add a dose of good old fashioned nerves and you've got a recipe for disaster.
I don't think the song selection helped either. Did Brian want them to be a cabaret act?