In terms of the ANH suit I was talking more along the lines of the ATM cover plastic looking a bit wobbly and the lights not working like they do in the other films. Having the helmet design slightly different and having the robes over the shoulder armour is fine.
The Empire might have spent lots of money on the Death Star but that doesn’t mean they can’t maintain their enforcer’s breathing machine thing.

What are those buttons supposed to do anyway?
Open the sliding door on his barbecue weener?