Just elaborating on the 'picture out the front' in side by side seater aircraft.
From the left seat, in a left hand turn, you will be sitting on the low side.
In a right hand turn, you will be sitting up high, and the attitude will be substantially different.
In such aircraft, it can help for a taped line to extend on the top of the cowl, from directly in front of your seat, going straight ahead. It helps to visualise the 'straight ahead' picture instead of using the spinner as a mid reference.
I hope this makes sense.