Independant cafe calories?

Can you help me estimate the calories in these? All 'handmade' from an independant cafe (Mouse Tail Coffee in London, if that helps) which doesn't publish calories.

• Lemon & Thyme Loaf
  AI estimate: 400 calories

• Almond Bakewell Flapjack (very thick and heavy)
  AI estimate: 620 kcal

• Sundried Tomato & Mozzarella Focaccia
  AI estimate: 730 kcal
  Funnily enough this one felt the 'lightest' of all of them, but AI gave the highest estimate.