After fitting my new footwell I decided to upgrade my brakes to servo assisted setup, as I had a servo pedal in the shed and my old pedal box needed welding.

I have just bolted the pedals in and the angle of the brake and clutch peddle are different.

Is this just something I have never noticed before or did land rover change the angles at some point?

Not messed with brake peddle but clutch peddle can be set to 5" from floor on series 3, I think earlier models have a different height. Clutch is adjusted with the screw and lock nut at the end of the peddle box, it can be seen in your picture pointing towards the air cleaner bracketry.